diff --git a/chrome/content/zotero/xpcom/db.js b/chrome/content/zotero/xpcom/db.js
index aabf21536..0f5635fde 100644
--- a/chrome/content/zotero/xpcom/db.js
+++ b/chrome/content/zotero/xpcom/db.js
@@ -20,657 +20,740 @@
     ***** END LICENSE BLOCK *****
 */
 
-Zotero.DB = new function(){
+Zotero.DBConnection = function(dbName) {
+	if (!dbName) {
+		throw ('DB name not provided in Zotero.DBConnection()');
+	}
+	
 	// Private members
-	var _connection;
-	var _transactionRollback;
-	var _transactionNestingLevel = 0;
-	var _callbacks = { begin: [], commit: [], rollback: [] };
+	this._dbName = dbName;
+	this._shutdown = false;
+	this._connection = null;
+	this._transactionRollback = null;
+	this._transactionNestingLevel = 0;
+	this._callbacks = { begin: [], commit: [], rollback: [] };
+	this._self = this;
+}
 	
-	this.query = query;
-	this.valueQuery = valueQuery;
-	this.rowQuery = rowQuery;
-	this.columnQuery = columnQuery;
-	this.getStatement = getStatement;
-	this.getLastInsertID = getLastInsertID;
-	this.getLastErrorString = getLastErrorString;
-	this.beginTransaction = beginTransaction;
-	this.commitTransaction = commitTransaction;
-	this.rollbackTransaction = rollbackTransaction;
-	this.addCallback = addCallback;
-	this.removeCallback = removeCallback;
-	this.transactionInProgress = transactionInProgress;
-	this.commitAllTransactions = commitAllTransactions;
-	this.tableExists = tableExists;
-	this.getColumns = getColumns;
-	this.getColumnHash = getColumnHash;
-	this.getNextID = getNextID;
-	this.getNextName = getNextName;
+/////////////////////////////////////////////////////////////////
+//
+// Public methods
+//
+/////////////////////////////////////////////////////////////////
+
+/*
+ * Run an SQL query
+ *
+ *  Optional _params_ is an array of bind parameters in the form
+ *		[1,"hello",3] or [{'int':2},{'string':'foobar'}]
+ *
+ * 	Returns:
+ *  	 - Associative array (similar to mysql_fetch_assoc) for SELECT's
+ *	 - lastInsertId for INSERT's
+ *	 - TRUE for other successful queries
+ *	 - FALSE on error
+ */
+Zotero.DBConnection.prototype.query = function (sql,params) {
+	var db = this._getDBConnection();
 	
-	/////////////////////////////////////////////////////////////////
-	//
-	// Privileged methods
-	//
-	/////////////////////////////////////////////////////////////////
-	
-	/*
-	 * Run an SQL query
-	 *
-	 *  Optional _params_ is an array of bind parameters in the form
-	 *		[1,"hello",3] or [{'int':2},{'string':'foobar'}]
-	 *
-	 * 	Returns:
-	 *  	 - Associative array (similar to mysql_fetch_assoc) for SELECT's
-	 *	 - lastInsertId for INSERT's
-	 *	 - TRUE for other successful queries
-	 *	 - FALSE on error
-	 */
-	function query(sql,params){
-		var db = _getDBConnection();
+	try {
+		// Parse out the SQL command being used
+		var op = sql.match(/^[^a-z]*[^ ]+/i);
+		if (op) {
+			op = op.toString().toLowerCase();
+		}
 		
-		try {
-			// Parse out the SQL command being used
-			var op = sql.match(/^[^a-z]*[^ ]+/i);
-			if (op){
-				op = op.toString().toLowerCase();
-			}
+		// If SELECT statement, return result
+		if (op=='select') {
+			// Until the native dataset methods work (or at least exist),
+			// we build a multi-dimensional associative array manually
 			
-			// If SELECT statement, return result
-			if (op=='select'){
-				// Until the native dataset methods work (or at least exist),
-				// we build a multi-dimensional associative array manually
+			var statement = this.getStatement(sql, params);
+			
+			var dataset = new Array();
+			while (statement.executeStep()) {
+				var row = new Array();
 				
-				var statement = getStatement(sql, params);
-				
-				var dataset = new Array();
-				while (statement.executeStep()){
-					var row = new Array();
-					
-					for(var i=0; i<statement.columnCount; i++) {
-						row[statement.getColumnName(i)] = _getTypedValue(statement, i);
-					}
-					dataset.push(row);
+				for(var i=0; i<statement.columnCount; i++) {
+					row[statement.getColumnName(i)] = this._getTypedValue(statement, i);
 				}
-				statement.reset();
-				
-				return dataset.length ? dataset : false;
+				dataset.push(row);
+			}
+			statement.reset();
+			
+			return dataset.length ? dataset : false;
+		}
+		else {
+			if (params) {
+				var statement = this.getStatement(sql, params);
+				statement.execute();
 			}
 			else {
-				if (params){
-					var statement = getStatement(sql, params);
-					statement.execute();
-				}
-				else {
-					Zotero.debug(sql,5);
-					db.executeSimpleSQL(sql);
-				}
-				
-				if (op=='insert'){
-					return db.lastInsertRowID;
-				}
-				// DEBUG: Can't get affected rows for UPDATE or DELETE?
-				else {
-					return true;
-				}
+				this._debug(sql,5);
+				db.executeSimpleSQL(sql);
+			}
+			
+			if (op=='insert') {
+				return db.lastInsertRowID;
+			}
+			// DEBUG: Can't get affected rows for UPDATE or DELETE?
+			else {
+				return true;
 			}
 		}
-		catch (e){
-			var dberr = (db.lastErrorString!='not an error')
-				? ' [ERROR: ' + db.lastErrorString + ']' : '';
-			throw(e + ' [QUERY: ' + sql + ']' + dberr);
-		}
 	}
+	catch (e) {
+		var dberr = (db.lastErrorString!='not an error')
+			? ' [ERROR: ' + db.lastErrorString + ']' : '';
+		throw(e + ' [QUERY: ' + sql + ']' + dberr);
+	}
+}
+
+
+/*
+ * Query a single value and return it
+ */
+Zotero.DBConnection.prototype.valueQuery = function (sql,params) {
+	var statement = this.getStatement(sql, params);
 	
-	
-	/*
-	 * Query a single value and return it
-	 */
-	function valueQuery(sql,params){
-		var statement = getStatement(sql, params);
-		
-		// No rows
-		if (!statement.executeStep()){
-			statement.reset();
-			return false;
-		}
-		
-		var value = _getTypedValue(statement, 0);
+	// No rows
+	if (!statement.executeStep()) {
 		statement.reset();
-		return value;
-	}
-	
-	
-	/*
-	 * Run a query and return the first row
-	 */
-	function rowQuery(sql,params){
-		var result = query(sql,params);
-		if (result){
-			return result[0];
-		}
-	}
-	
-	
-	/*
-	 * Run a query and return the first column as a numerically-indexed array
-	 */
-	function columnQuery(sql,params){
-		var statement = getStatement(sql, params);
-		
-		if (statement){
-			var column = new Array();
-			while (statement.executeStep()){
-				column.push(_getTypedValue(statement, 0));
-			}
-			statement.reset();
-			return column.length ? column : false;
-		}
 		return false;
 	}
 	
+	var value = this._getTypedValue(statement, 0);
+	statement.reset();
+	return value;
+}
+
+
+/*
+ * Run a query and return the first row
+ */
+Zotero.DBConnection.prototype.rowQuery = function (sql,params) {
+	var result = query(sql,params);
+	if (result) {
+		return result[0];
+	}
+}
+
+
+/*
+ * Run a query and return the first column as a numerically-indexed array
+ */
+Zotero.DBConnection.prototype.columnQuery = function (sql,params) {
+	var statement = this.getStatement(sql, params);
 	
-	/*
-	/*
-	 * Get a raw mozStorage statement from the DB for manual processing
-	 *
-	 * This should only be used externally for manual parameter binding for
-	 * large repeated queries
-	 *
-	 *  Optional _params_ is an array of bind parameters in the form
-	 *		[1,"hello",3] or [{'int':2},{'string':'foobar'}]
-	 */
-	function getStatement(sql, params){
-		var db = _getDBConnection();
-		
-		try {
-			Zotero.debug(sql,5);
-			var statement = db.createStatement(sql);
+	if (statement) {
+		var column = new Array();
+		while (statement.executeStep()) {
+			column.push(this._getTypedValue(statement, 0));
 		}
-		catch (e){
-			var dberr = (db.lastErrorString!='not an error')
-				? ' [ERROR: ' + db.lastErrorString + ']' : '';
-			throw(e + ' [QUERY: ' + sql + ']' + dberr);
+		statement.reset();
+		return column.length ? column : false;
+	}
+	return false;
+}
+
+
+/*
+/*
+ * Get a raw mozStorage statement from the DB for manual processing
+ *
+ * This should only be used externally for manual parameter binding for
+ * large repeated queries
+ *
+ *  Optional _params_ is an array of bind parameters in the form
+ *		[1,"hello",3] or [{'int':2},{'string':'foobar'}]
+ */
+Zotero.DBConnection.prototype.getStatement = function (sql, params) {
+	var db = this._getDBConnection();
+	
+	try {
+		this._debug(sql,5);
+		var statement = db.createStatement(sql);
+	}
+	catch (e) {
+		var dberr = (db.lastErrorString!='not an error')
+			? ' [ERROR: ' + db.lastErrorString + ']' : '';
+		throw(e + ' [QUERY: ' + sql + ']' + dberr);
+	}
+	
+	if (params) {
+		// If single scalar value or single non-array object, wrap in an array
+		if (typeof params != 'object' || params===null ||
+			(params && typeof params == 'object' && !params.length)) {
+			params = [params];
 		}
 		
-		if (params){
-			// If single scalar value or single non-array object, wrap in an array
-			if (typeof params != 'object' || params===null ||
-				(params && typeof params == 'object' && !params.length)){
-				params = [params];
+		for (var i=0; i<params.length; i++) {
+			// Integer
+			if (params[i]!==null && typeof params[i]['int'] != 'undefined') {
+				var type = 'int';
+				var value = params[i]['int'];
+			}
+			// String
+			else if (params[i]!==null && typeof params[i]['string'] != 'undefined') {
+				var type = 'string';
+				var value = params[i]['string'];
+			}
+			// Null
+			else if (params[i]!==null && typeof params[i]['null'] != 'undefined') {
+				var type = 'null';
+			}
+			// Automatic (trust the JS type)
+			else {
+				switch (typeof params[i]) {
+					case 'string':
+						var type = 'string';
+						break;
+					case 'number':
+						var type = 'int';
+						break;
+					// Object
+					default:
+						if (params[i]===null) {
+							var type = 'null';
+						}
+						else {
+							throw('Invalid bound parameter ' + params[i] +
+								' in ' + Zotero.varDump(params));
+						}
+				}
+				var value = params[i];
 			}
 			
-			for (var i=0; i<params.length; i++){
-				// Integer
-				if (params[i]!==null && typeof params[i]['int'] != 'undefined'){
-					var type = 'int';
-					var value = params[i]['int'];
-				}
-				// String
-				else if (params[i]!==null && typeof params[i]['string'] != 'undefined'){
-					var type = 'string';
-					var value = params[i]['string'];
-				}
-				// Null
-				else if (params[i]!==null && typeof params[i]['null'] != 'undefined'){
-					var type = 'null';
-				}
-				// Automatic (trust the JS type)
-				else {
-					switch (typeof params[i]){
-						case 'string':
-							var type = 'string';
-							break;
-						case 'number':
-							var type = 'int';
-							break;
-						// Object
-						default:
-							if (params[i]===null){
-								var type = 'null';
-							}
-							else {
-								throw('Invalid bound parameter ' + params[i] +
-									' in ' + Zotero.varDump(params));
-							}
-					}
-					var value = params[i];
-				}
-				
-				// Bind the parameter as the correct type
-				switch (type){
-					case 'int':
-						Zotero.debug('Binding parameter ' + (i+1)
-							+ ' of type int: ' + value, 5);
-						statement.bindInt32Parameter(i, value);
-						break;
-						
-					case 'string':
-						Zotero.debug('Binding parameter ' + (i+1)
-							+ ' of type string: "' + value + '"', 5);
-						statement.bindUTF8StringParameter(i, value);
-						break;
-						
-					case 'null':
-						Zotero.debug('Binding parameter ' + (i+1)
-							+ ' of type NULL', 5);
-						statement.bindNullParameter(i);
-						break;
-				}
+			// Bind the parameter as the correct type
+			switch (type) {
+				case 'int':
+					this._debug('Binding parameter ' + (i+1)
+						+ ' of type int: ' + value, 5);
+					statement.bindInt32Parameter(i, value);
+					break;
+					
+				case 'string':
+					this._debug('Binding parameter ' + (i+1)
+						+ ' of type string: "' + value + '"', 5);
+					statement.bindUTF8StringParameter(i, value);
+					break;
+					
+				case 'null':
+					this._debug('Binding parameter ' + (i+1)
+						+ ' of type NULL', 5);
+					statement.bindNullParameter(i);
+					break;
 			}
 		}
-		return statement;
 	}
+	return statement;
+}
+
+
+/*
+ * Only for use externally with this.getStatement()
+ */
+Zotero.DBConnection.prototype.getLastInsertID = function () {
+	var db = this._getDBConnection();
+	return db.lastInsertRowID;
+}
+
+
+/*
+ * Only for use externally with this.getStatement()
+ */
+Zotero.DBConnection.prototype.getLastErrorString = function () {
+	var db = this._getDBConnection();
+	return db.lastErrorString;
+}
+
+
+Zotero.DBConnection.prototype.beginTransaction = function () {
+	var db = this._getDBConnection();
 	
-	
-	/*
-	 * Only for use externally with getStatement()
-	 */
-	function getLastInsertID(){
-		var db = _getDBConnection();
-		return db.lastInsertRowID;
+	if (db.transactionInProgress) {
+		this._transactionNestingLevel++;
+		this._debug('Transaction in progress -- increasing level to '
+			+ this._transactionNestingLevel, 5);
 	}
-	
-	
-	/*
-	 * Only for use externally with getStatement()
-	 */
-	function getLastErrorString(){
-		var db = _getDBConnection();
-		return db.lastErrorString;
-	}
-	
-	
-	function beginTransaction(){
-		var db = _getDBConnection();
+	else {
+		this._debug('Beginning DB transaction', 5);
+		db.beginTransaction();
 		
-		if (db.transactionInProgress){
-			_transactionNestingLevel++;
-			Zotero.debug('Transaction in progress -- increasing level to '
-				+ _transactionNestingLevel, 5);
+		// Run callbacks
+		for (var i=0; i<this._callbacks.begin.length; i++) {
+			if (this._callbacks.begin[i]) {
+				this._callbacks.begin[i]();
+			}
 		}
-		else {
-			Zotero.debug('Beginning DB transaction', 5);
-			db.beginTransaction();
+	}
+}
+
+
+Zotero.DBConnection.prototype.commitTransaction = function () {
+	var db = this._getDBConnection();
+	
+	if (this._transactionNestingLevel) {
+		this._transactionNestingLevel--;
+		this._debug('Decreasing transaction level to ' + this._transactionNestingLevel, 5);
+	}
+	else if (this._transactionRollback) {
+		this._debug('Rolling back previously flagged transaction', 5);
+		db.rollbackTransaction();
+	}
+	else {
+		this._debug('Committing transaction',5);
+		try {
+			db.commitTransaction();
 			
 			// Run callbacks
-			for (var i=0; i<_callbacks.begin.length; i++) {
-				if (_callbacks.begin[i]) {
-					_callbacks.begin[i]();
+			for (var i=0; i<this._callbacks.commit.length; i++) {
+				if (this._callbacks.commit[i]) {
+					this._callbacks.commit[i]();
 				}
 			}
 		}
+		catch(e) {
+			var dberr = (db.lastErrorString!='not an error')
+				? ' [ERROR: ' + db.lastErrorString + ']' : '';
+			throw(e + dberr);
+		}
+	}
+}
+
+
+Zotero.DBConnection.prototype.rollbackTransaction = function () {
+	var db = this._getDBConnection();
+	
+	if (!db.transactionInProgress) {
+		this._debug("Transaction is not in progress in rollbackTransaction()", 2);
+		return;
 	}
 	
-	
-	function commitTransaction(){
-		var db = _getDBConnection();
-		
-		if (_transactionNestingLevel){
-			_transactionNestingLevel--;
-			Zotero.debug('Decreasing transaction level to ' + _transactionNestingLevel, 5);
-		}
-		else if (_transactionRollback){
-			Zotero.debug('Rolling back previously flagged transaction', 5);
+	if (this._transactionNestingLevel) {
+		this._transactionNestingLevel--;
+		this._transactionRollback = true;
+		this._debug('Flagging nested transaction for rollback', 5);
+	}
+	else {
+		this._debug('Rolling back transaction', 5);
+		this._transactionRollback = false;
+		try {
 			db.rollbackTransaction();
-		}
-		else {
-			Zotero.debug('Committing transaction',5);
-			try {
-				db.commitTransaction();
-				
-				// Run callbacks
-				for (var i=0; i<_callbacks.commit.length; i++) {
-					if (_callbacks.commit[i]) {
-						_callbacks.commit[i]();
-					}
+			
+			// Run callbacks
+			for (var i=0; i<this._callbacks.rollback.length; i++) {
+				if (this._callbacks.rollback[i]) {
+					this._callbacks.rollback[i]();
 				}
 			}
-			catch(e){
-				var dberr = (db.lastErrorString!='not an error')
-					? ' [ERROR: ' + db.lastErrorString + ']' : '';
-				throw(e + dberr);
-			}
+		}
+		catch(e) {
+			var dberr = (db.lastErrorString!='not an error')
+				? ' [ERROR: ' + db.lastErrorString + ']' : '';
+			throw(e + dberr);
+		}
+	}
+}
+
+
+Zotero.DBConnection.prototype.addCallback = function (type, cb) {
+	switch (type) {
+		case 'begin':
+		case 'commit':
+		case 'rollback':
+			break;
+			
+		default:
+			throw ("Invalid callback type '" + type + "' in DB.addCallback()");
+	}
+	
+	var id = this._callbacks[type].length;
+	this._callbacks[type][id] = cb;
+	return id;
+}
+
+
+Zotero.DBConnection.prototype.removeCallback = function (type, id) {
+	switch (type) {
+		case 'begin':
+		case 'commit':
+		case 'rollback':
+			break;
+			
+		default:
+			throw ("Invalid callback type '" + type + "' in DB.removeCallback()");
+	}
+	
+	delete this._callbacks[type][id];
+}
+
+
+Zotero.DBConnection.prototype.transactionInProgress = function () {
+	var db = this._getDBConnection();
+	return db.transactionInProgress;
+}
+
+
+/**
+ * Safety function used on shutdown to make sure we're not stuck in the
+ * middle of a transaction
+ */
+Zotero.DBConnection.prototype.commitAllTransactions = function () {
+	if (this.transactionInProgress()) {
+		var level = this._transactionNestingLevel;
+		this._transactionNestingLevel = 0;
+		try {
+			this.commitTransaction();
+		}
+		catch (e) {}
+		return level ? level : true;
+	}
+	return false;
+}
+
+
+Zotero.DBConnection.prototype.tableExists = function (table) {
+	return this._getDBConnection().tableExists(table);
+}
+
+
+Zotero.DBConnection.prototype.getColumns = function (table) {
+	var db = this._getDBConnection();
+	
+	try {
+		var sql = "SELECT * FROM " + table + " LIMIT 1";
+		var statement = this.getStatement(sql);
+		var cols = new Array();
+		for (var i=0,len=statement.columnCount; i<len; i++) {
+			cols.push(statement.getColumnName(i));
+		}
+		statement.reset();
+		return cols;
+	}
+	catch (e) {
+		this._debug(e,1);
+		return false;
+	}
+}
+
+
+Zotero.DBConnection.prototype.getColumnHash = function (table) {
+	var cols = this.getColumns(table);
+	var hash = new Array();
+	if (cols.length) {
+		for (var i=0; i<cols.length; i++) {
+			hash[cols[i]] = true;
+		}
+	}
+	return hash;
+}
+
+
+/**
+* Find the lowest unused integer >0 in a table column
+*
+* Note: This retrieves all the rows of the column, so it's not really
+*	meant for particularly large tables.
+**/
+Zotero.DBConnection.prototype.getNextID = function (table, column) {
+	var sql = 'SELECT ' + column + ' FROM ' + table + ' ORDER BY ' + column;
+	var vals = this.columnQuery(sql);
+	
+	if (!vals) {
+		return 1;
+	}
+	
+	if (vals[0] === '0') {
+		vals.shift();
+	}
+	
+	for (var i=0, len=vals.length; i<len; i++) {
+		if (vals[i] != i+1) {
+			break;
 		}
 	}
 	
+	return i+1;
+}
+
+
+/**
+* Find the next lowest numeric suffix for a value in table column
+*
+* For example, if "Untitled" and "Untitled 2" and "Untitled 4",
+* returns "Untitled 3"
+*
+* DEBUG: doesn't work once there's an "Untitled 10"
+*
+* If _name_ alone is available, returns that
+**/
+Zotero.DBConnection.prototype.getNextName = function (table, field, name)
+{
+	var sql = "SELECT " + field + " FROM " + table + " WHERE " + field
+		+ " LIKE ? ORDER BY " + field + " COLLATE NOCASE";
+	var untitleds = this.columnQuery(sql, name + '%');
 	
-	function rollbackTransaction(){
-		var db = _getDBConnection();
-		
-		if (!db.transactionInProgress) {
-			Zotero.debug("Transaction is not in progress in rollbackTransaction()", 2);
-			return;
+	if (!untitleds || untitleds[0]!=name) {
+		return name;
+	}
+	
+	var i = 1;
+	var num = 2;
+	while (untitleds[i] && untitleds[i]==(name + ' ' + num)) {
+		while (untitleds[i+1] && untitleds[i]==untitleds[i+1]) {
+			this._debug('Next ' + i + ' is ' + untitleds[i]);
+			i++;
 		}
 		
-		if (_transactionNestingLevel){
-			_transactionNestingLevel--;
-			_transactionRollback = true;
-			Zotero.debug('Flagging nested transaction for rollback', 5);
-		}
-		else {
-			Zotero.debug('Rolling back transaction', 5);
-			_transactionRollback = false;
-			try {
-				db.rollbackTransaction();
-				
-				// Run callbacks
-				for (var i=0; i<_callbacks.rollback.length; i++) {
-					if (_callbacks.rollback[i]) {
-						_callbacks.rollback[i]();
-					}
-				}
+		i++;
+		num++;
+	}
+	
+	return name + ' ' + num;
+}
+
+
+/*
+ * Shutdown observer
+ */
+Zotero.DBConnection.prototype.observe = function(subject, topic, data) {
+	switch (topic) {
+		case 'xpcom-shutdown':
+			if (this._shutdown) {
+				this._debug('returning');
+				return;
 			}
-			catch(e){
-				var dberr = (db.lastErrorString!='not an error')
-					? ' [ERROR: ' + db.lastErrorString + ']' : '';
-				throw(e + dberr);
+			
+			var level = this.commitAllTransactions();
+			if (level) {
+				level = level === true ? '0' : level;
+				this._debug("A transaction in DB '" + this._dbName + "' was still open! (level " + level + ")", 2);
 			}
-		}
+			
+			this._shutdown = true;
+			this.backupDatabase();
+			
+			break;
 	}
-	
-	
-	function addCallback(type, cb) {
-		switch (type) {
-			case 'begin':
-			case 'commit':
-			case 'rollback':
-				break;
-				
-			default:
-				throw ("Invalid callback type '" + type + "' in DB.addCallback()");
-		}
-		
-		var id = _callbacks[type].length;
-		_callbacks[type][id] = cb;
-		return id;
-	}
-	
-	
-	function removeCallback(type, id) {
-		switch (type) {
-			case 'begin':
-			case 'commit':
-			case 'rollback':
-				break;
-				
-			default:
-				throw ("Invalid callback type '" + type + "' in DB.removeCallback()");
-		}
-		
-		delete _callbacks[type][id];
-	}
-	
-	
-	function transactionInProgress(){
-		var db = _getDBConnection();
-		return db.transactionInProgress;
-	}
-	
-	
-	/**
-	 * Safety function used on shutdown to make sure we're not stuck in the
-	 * middle of a transaction
-	 */
-	function commitAllTransactions(){
-		if (transactionInProgress()){
-			var level = _transactionNestingLevel;
-			_transactionNestingLevel = 0;
-			try {
-				Zotero.DB.commitTransaction();
-			}
-			catch (e){}
-			return level ? level : true;
-		}
+}
+
+
+Zotero.DBConnection.prototype.backupDatabase = function () {
+	if (this.transactionInProgress()) {
+		this._debug("Transaction in progress--skipping backup of DB '" + this._dbName + "'", 2);
 		return false;
 	}
 	
+	this._debug("Backing up database '" + this._dbName + "'");
 	
-	function tableExists(table){
-		return _getDBConnection().tableExists(table);
+	var file = Zotero.getZoteroDatabase(this._dbName);
+	var backupFile = Zotero.getZoteroDatabase(this._dbName, 'bak');
+	
+	// Copy via a temporary file so we don't run into disk space issues
+	// after deleting the old backup file
+	var tmpFile = Zotero.getZoteroDatabase(this._dbName, 'tmp');
+	if (tmpFile.exists()) {
+		tmpFile.remove(null);
 	}
 	
-	
-	function getColumns(table){
-		var db = _getDBConnection();
-		
-		try {
-			var sql = "SELECT * FROM " + table + " LIMIT 1";
-			var statement = getStatement(sql);
-			var cols = new Array();
-			for (var i=0,len=statement.columnCount; i<len; i++){
-				cols.push(statement.getColumnName(i));
-			}
-			statement.reset();
-			return cols;
-		}
-		catch (e){
-			Zotero.debug(e,1);
-			return false;
-		}
+	try {
+		file.copyTo(file.parent, tmpFile.leafName);
+	}
+	catch (e){
+		// TODO: deal with low disk space
+		throw (e);
 	}
 	
-	
-	function getColumnHash(table){
-		var cols = getColumns(table);
-		var hash = new Array();
-		if (cols.length){
-			for (var i=0; i<cols.length; i++){
-				hash[cols[i]] = true;
-			}
-		}
-		return hash;
-	}
-	
-	
-	/**
-	* Find the lowest unused integer >0 in a table column
-	*
-	* Note: This retrieves all the rows of the column, so it's not really
-	*	meant for particularly large tables.
-	**/
-	function getNextID(table, column){
-		var sql = 'SELECT ' + column + ' FROM ' + table + ' ORDER BY ' + column;
-		var vals = Zotero.DB.columnQuery(sql);
-		
-		if (!vals){
-			return 1;
-		}
-		
-		if (vals[0] === '0'){
-			vals.shift();
-		}
-		
-		for (var i=0, len=vals.length; i<len; i++){
-			if (vals[i] != i+1){
-				break;
-			}
-		}
-		
-		return i+1;
-	}
-	
-	
-	/**
-	* Find the next lowest numeric suffix for a value in table column
-	*
-	* For example, if "Untitled" and "Untitled 2" and "Untitled 4",
-	* returns "Untitled 3"
-	*
-	* DEBUG: doesn't work once there's an "Untitled 10"
-	*
-	* If _name_ alone is available, returns that
-	**/
-	function getNextName(table, field, name)
-	{
-		var sql = "SELECT " + field + " FROM " + table + " WHERE " + field
-			+ " LIKE ? ORDER BY " + field + " COLLATE NOCASE";
-		var untitleds = Zotero.DB.columnQuery(sql, name + '%');
-		
-		if (!untitleds || untitleds[0]!=name){
-			return name;
-		}
-		
-		var i = 1;
-		var num = 2;
-		while (untitleds[i] && untitleds[i]==(name + ' ' + num)){
-			while (untitleds[i+1] && untitleds[i]==untitleds[i+1]){
-				Zotero.debug('Next ' + i + ' is ' + untitleds[i]);
-				i++;
-			}
-			
-			i++;
-			num++;
-		}
-		
-		return name + ' ' + num;
-	}
-	
-	
-	
-	/////////////////////////////////////////////////////////////////
-	//
-	// Private methods
-	//
-	/////////////////////////////////////////////////////////////////
-	
-	/*
-	 * Retrieve a link to the data store
-	 */
-	function _getDBConnection(){
-		if (_connection){
-			return _connection;
-		}
-		
-		// Get the storage service
+	try {
 		var store = Components.classes["@mozilla.org/storage/service;1"].
 			getService(Components.interfaces.mozIStorageService);
-		
-		var file = Zotero.getZoteroDatabase();
-		var backupFile = Zotero.getZoteroDatabase('bak');
-		
-		if (ZOTERO_CONFIG['DB_REBUILD']){
-			if (confirm('Erase all user data and recreate database from schema?')){
-				// Delete existing Zotero database
-				if (file.exists()){
-					file.remove(null);
-				}
-				
-				// Delete existing storage folder
-				var dir = Zotero.getStorageDirectory();
-				if (dir.exists()){
-					dir.remove(true);
-				}
+			
+		var connection = store.openDatabase(tmpFile);
+	}
+	catch (e){
+		this._debug("Database file '" + tmpFile.leafName + "' is corrupt--skipping backup");
+		return false;
+	}
+	
+	// Remove old backup file
+	if (backupFile.exists()) {
+		backupFile.remove(null);
+	}
+	
+	tmpFile.moveTo(tmpFile.parent, backupFile.leafName);
+	
+	return true;
+}
+
+
+/////////////////////////////////////////////////////////////////
+//
+// Private methods
+//
+/////////////////////////////////////////////////////////////////
+
+/*
+ * Retrieve a link to the data store
+ */
+Zotero.DBConnection.prototype._getDBConnection = function () {
+	if (this._connection) {
+		return this._connection;
+	}
+	
+	this._debug("Opening database '" + this._dbName + "'");
+	
+	// Get the storage service
+	var store = Components.classes["@mozilla.org/storage/service;1"].
+		getService(Components.interfaces.mozIStorageService);
+	
+	var file = Zotero.getZoteroDatabase(this._dbName);
+	var backupFile = Zotero.getZoteroDatabase(this._dbName, 'bak');
+	
+	var fileName = this._dbName + '.sqlite';
+	
+	if (this._dbName == 'zotero' && ZOTERO_CONFIG['DB_REBUILD']) {
+		if (confirm('Erase all user data and recreate database from schema?')) {
+			// Delete existing Zotero database
+			if (file.exists()) {
+				file.remove(null);
+			}
+			
+			// Delete existing storage folder
+			var dir = Zotero.getStorageDirectory();
+			if (dir.exists()) {
+				dir.remove(true);
 			}
 		}
-		
-		// DEBUG: Temporary check
-		// Test the backup file (to make sure the backup mechanism is working)
-		if (backupFile.exists()){
-			try {
-				_connection = store.openDatabase(backupFile);
-			}
-			catch (e){
-				Zotero.debug('Backup file was corrupt', 1);
-			}
-			_connection = undefined;
+	}
+	
+	// DEBUG: Temporary check
+	// Test the backup file (to make sure the backup mechanism is working)
+	if (backupFile.exists()) {
+		try {
+			this._connection = store.openDatabase(backupFile);
 		}
-		
-		catchBlock: try {
-			_connection = store.openDatabase(file);
+		catch (e) {
+			this._debug("Backup file '" + backupFile.leafName + "' was corrupt!", 1);
 		}
-		catch (e){
-			if (e.name=='NS_ERROR_FILE_CORRUPTED'){
-				Zotero.debug('Database file corrupted', 1);
+		this._connection = undefined;
+	}
+	
+	catchBlock: try {
+		this._connection = store.openDatabase(file);
+	}
+	catch (e) {
+		if (e.name=='NS_ERROR_FILE_CORRUPTED') {
+			this._debug("Database file '" + file.leafName + "' corrupted", 1);
+			
+			// No backup file! Eek!
+			if (!backupFile.exists()) {
+				this._debug("No backup file for DB '" + this._dbName + "' exists", 1);
 				
-				// No backup file! Eek!
-				if (!backupFile.exists()){
-					Zotero.debug('No backup file exists', 1);
-					
-					// Save damaged filed
-					Zotero.debug('Saving damaged DB file with .damaged extension', 1);
-					var damagedFile = Zotero.getZoteroDatabase('damaged');
-					Zotero.moveToUnique(file, damagedFile);
-					
-					// Create new main database
-					var file = Zotero.getZoteroDatabase();
-					_connection = store.openDatabase(file);
-					
-					alert(Zotero.getString('db.dbCorruptedNoBackup'));
-					break catchBlock;
-				}
-				
-				// Save damaged file
-				Zotero.debug('Saving damaged DB file with .damaged extension', 1);
-				var damagedFile = Zotero.getZoteroDatabase('damaged');
+				// Save damaged filed
+				this._debug('Saving damaged DB file with .damaged extension', 1);
+				var damagedFile = Zotero.getZoteroDatabase(this._dbName, 'damaged');
 				Zotero.moveToUnique(file, damagedFile);
 				
-				// Test the backup file
-				try {
-					_connection = store.openDatabase(backupFile);
-				}
-				// Can't open backup either
-				catch (e){
-					// Create new main database
-					var file = Zotero.getZoteroDatabase();
-					_connection = store.openDatabase(file);
-					
-					alert(Zotero.getString('db.dbRestoreFailed'));
-					break catchBlock;
-				}
-				
-				_connection = undefined;
-				
-				// Copy backup file to main DB file
-				Zotero.debug('Restoring main database from backup file', 1);
-				try {
-					backupFile.copyTo(backupFile.parent, ZOTERO_CONFIG['DB_FILE']);
-				}
-				catch (e){
-					// TODO: deal with low disk space
-					throw (e);
-				}
-				
-				// Open restored database
-				var file = Zotero.getZoteroDirectory();
-				file.append(ZOTERO_CONFIG['DB_FILE']);
-				_connection = store.openDatabase(file);
-				Zotero.debug('Database restored', 1);
-				var msg = Zotero.getString('db.dbRestored', [
-					Zotero.Date.getFileDateString(backupFile),
-					Zotero.Date.getFileTimeString(backupFile)
-				]);
-				alert(msg);
+				// Create new main database
+				var file = Zotero.getZoteroDatabase(this._dbName);
+				this._connection = store.openDatabase(file);
 				
+				alert(Zotero.getString('db.dbCorruptedNoBackup', fileName));
 				break catchBlock;
 			}
 			
-			// Some other error that we don't yet know how to deal with
-			throw (e);
+			// Save damaged file
+			this._debug('Saving damaged DB file with .damaged extension', 1);
+			var damagedFile = Zotero.getZoteroDatabase(this._dbName, 'damaged');
+			Zotero.moveToUnique(file, damagedFile);
+			
+			// Test the backup file
+			try {
+				this._connection = store.openDatabase(backupFile);
+			}
+			// Can't open backup either
+			catch (e) {
+				// Create new main database
+				var file = Zotero.getZoteroDatabase(this._dbName);
+				this._connection = store.openDatabase(file);
+				
+				alert(Zotero.getString('db.dbRestoreFailed', fileName));
+				break catchBlock;
+			}
+			
+			this._connection = undefined;
+			
+			// Copy backup file to main DB file
+			this._debug("Restoring database '" + this._dbName + "' from backup file", 1);
+			try {
+				backupFile.copyTo(backupFile.parent, fileName);
+			}
+			catch (e) {
+				// TODO: deal with low disk space
+				throw (e);
+			}
+			
+			// Open restored database
+			var file = Zotero.getZoteroDirectory();
+			file.append(fileName);
+			this._connection = store.openDatabase(file);
+			this._debug('Database restored', 1);
+			var msg = Zotero.getString('db.dbRestored', [
+				fileName,
+				Zotero.Date.getFileDateString(backupFile),
+				Zotero.Date.getFileTimeString(backupFile)
+			]);
+			alert(msg);
+			
+			break catchBlock;
 		}
 		
-		return _connection;
+		// Some other error that we don't yet know how to deal with
+		throw (e);
 	}
 	
 	
-	function _getTypedValue(statement, i){
-		var type = statement.getTypeOfIndex(i);
-		switch (type){
-			case statement.VALUE_TYPE_INTEGER:
-				var func = statement.getInt64;
-				break;
-			case statement.VALUE_TYPE_TEXT:
-				var func = statement.getUTF8String;
-				break;
-			case statement.VALUE_TYPE_NULL:
-				return null;
-			case statement.VALUE_TYPE_FLOAT:
-				var func = statement.getDouble;
-				break;
-			case statement.VALUE_TYPE_BLOB:
-				var func = statement.getBlob;
-				break;
-		}
-		
-		return func(i);
-	}
+	// Register shutdown handler to call this.onShutdown() for DB backup
+	var observerService = Components.classes["@mozilla.org/observer-service;1"]
+		.getService(Components.interfaces.nsIObserverService);
+	
+	observerService.addObserver(this, "xpcom-shutdown", false);
+	
+	return this._connection;
 }
+
+
+Zotero.DBConnection.prototype._debug = function (str, level) {
+	var prefix = this._dbName == 'zotero' ? '' : '[' + this._dbName + '] ';
+	Zotero.debug(prefix + str, level);
+}
+
+
+Zotero.DBConnection.prototype._getTypedValue = function (statement, i) {
+	var type = statement.getTypeOfIndex(i);
+	switch (type) {
+		case statement.VALUE_TYPE_INTEGER:
+			var func = statement.getInt64;
+			break;
+		case statement.VALUE_TYPE_TEXT:
+			var func = statement.getUTF8String;
+			break;
+		case statement.VALUE_TYPE_NULL:
+			return null;
+		case statement.VALUE_TYPE_FLOAT:
+			var func = statement.getDouble;
+			break;
+		case statement.VALUE_TYPE_BLOB:
+			var func = statement.getBlob;
+			break;
+	}
+	
+	return func(i);
+}
+
+
+
+
+// Initialize main database connection
+Zotero.DB = new Zotero.DBConnection('zotero');
diff --git a/chrome/content/zotero/xpcom/zotero.js b/chrome/content/zotero/xpcom/zotero.js
index a6977de4e..3d35562a0 100644
--- a/chrome/content/zotero/xpcom/zotero.js
+++ b/chrome/content/zotero/xpcom/zotero.js
@@ -22,7 +22,6 @@
 
 const ZOTERO_CONFIG = {
 	GUID: 'zotero@chnm.gmu.edu',
-	DB_FILE: 'zotero.sqlite',
 	DB_REBUILD: false, // erase DB and recreate from schema
 	REPOSITORY_URL: 'http://www.zotero.org/repo',
 	REPOSITORY_CHECK_INTERVAL: 86400, // 24 hours
@@ -36,17 +35,16 @@ var Zotero = new function(){
 	var _initialized = false;
 	var _debugLogging;
 	var _debugLevel;
-	var _shutdown = false;
+	//var _shutdown = false;
 	var _localizedStringBundle;
 	
 	// Privileged (public) methods
 	this.init = init;
-	this.shutdown = shutdown;
+	//this.shutdown = shutdown;
 	this.getProfileDirectory = getProfileDirectory;
 	this.getZoteroDirectory = getZoteroDirectory;
 	this.getStorageDirectory = getStorageDirectory;
 	this.getZoteroDatabase = getZoteroDatabase;
-	this.backupDatabase = backupDatabase;
 	this.debug = debug;
 	this.varDump = varDump;
 	this.safeDebug = safeDebug;
@@ -77,6 +75,7 @@ var Zotero = new function(){
 		}
 		
 		// Register shutdown handler to call Zotero.shutdown()
+		/*
 		var observerService = Components.classes["@mozilla.org/observer-service;1"]
 			.getService(Components.interfaces.nsIObserverService);
 		observerService.addObserver({
@@ -84,6 +83,7 @@ var Zotero = new function(){
 				Zotero.shutdown(subject, topic, data)
 			}
 		}, "xpcom-shutdown", false);
+		*/
 		
 		// Load in the preferences branch for the extension
 		Zotero.Prefs.init();
@@ -143,24 +143,15 @@ var Zotero = new function(){
 	}
 	
 	
+	/*
 	function shutdown(subject, topic, data){
 		// Called twice otherwise, for some reason
 		if (_shutdown){
 			return false;
 		}
-		
-		var level = Zotero.DB.commitAllTransactions();
-		if (level){
-			level = level===true ? '0' : level;
-			Zotero.debug("A transaction was still open! (level " + level + ")", 2);
-		}
-		
-		_shutdown = true;
-		
-		Zotero.backupDatabase();
-		
 		return true;
 	}
+	*/
 	
 	
 	function getProfileDirectory(){
@@ -193,66 +184,16 @@ var Zotero = new function(){
 		return file;
 	}
 	
-	function getZoteroDatabase(ext){
+	function getZoteroDatabase(name, ext){
+		name = name ? name + '.sqlite' : 'zotero.sqlite';
 		ext = ext ? '.' + ext : '';
 		
 		var file = Zotero.getZoteroDirectory();
-		file.append(ZOTERO_CONFIG['DB_FILE'] + ext);
+		file.append(name + ext);
 		return file;
 	}
 	
 	
-	/*
-	 * Back up the main database file
-	 */
-	function backupDatabase(){
-		if (Zotero.DB.transactionInProgress()){
-			Zotero.debug('Transaction in progress--skipping DB backup', 2);
-			return false;
-		}
-		
-		Zotero.debug('Backing up database');
-		
-		var file = Zotero.getZoteroDatabase();
-		var backupFile = Zotero.getZoteroDatabase('bak');
-		
-		// Copy via a temporary file so we don't run into disk space issues
-		// after deleting the old backup file
-		var tmpFile = Zotero.getZoteroDatabase('tmp');
-		if (tmpFile.exists()){
-			tmpFile.remove(null);
-		}
-		
-		try {
-			file.copyTo(file.parent, tmpFile.leafName);
-		}
-		catch (e){
-			// TODO: deal with low disk space
-			throw (e);
-		}
-		
-		try {
-			var store = Components.classes["@mozilla.org/storage/service;1"].
-				getService(Components.interfaces.mozIStorageService);
-				
-			var connection = store.openDatabase(tmpFile);
-		}
-		catch (e){
-			Zotero.debug("Database file is corrupt--skipping backup");
-			return false;
-		}
-		
-		// Remove old backup file
-		if (backupFile.exists()){
-			backupFile.remove(null);
-		}
-		
-		tmpFile.moveTo(tmpFile.parent, backupFile.leafName);
-		
-		return true;
-	}
-	
-	
 	/*
 	 * Debug logging function
 	 *
diff --git a/chrome/locale/de-AT/zotero/zotero.properties b/chrome/locale/de-AT/zotero/zotero.properties
index 4f7bdb51d..0e219f747 100644
--- a/chrome/locale/de-AT/zotero/zotero.properties
+++ b/chrome/locale/de-AT/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Artikel gespeichert.
 ingester.scrapeError=Artikel konnte nicht gespeichert werden.
 ingester.scrapeErrorDescription=Ein Fehler ist aufgetreten bei dem Versuch, diesen Artikel zu speichern. Wenn dieser Fehler weiterhin auftritt, kontaktieren Sie bitte den Autor des Übersetzers.
 
-db.dbCorruptedNoBackup=Die Zotero-Datenbank wurde offensichtlich beschädigt und es gibt kein automatisches Backup.\n\nEine neue Datenbank wurde erstellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-db.dbRestored=Die Zotero-Datenbank wurde offensichtlich beschädigt.\n\nDie Daten wurde aus dem letztigen automatischen Backup vom %1$S um %2$S wiederhergestellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-db.dbRestoreFailed=Die Zotero-Datenbank wurde offensichtlich beschädigt, und der Versuch, die Daten aus dem letztigen automatischen Backup wiederherzustellen, hat nicht funktioniert.\n\nEine neue Datenbank wurde erstellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/de-CH/zotero/zotero.properties b/chrome/locale/de-CH/zotero/zotero.properties
index 5ded030f9..9bd44437c 100644
--- a/chrome/locale/de-CH/zotero/zotero.properties
+++ b/chrome/locale/de-CH/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Artikel gespeichert.
 ingester.scrapeError=Artikel konnte nicht gespeichert werden.
 ingester.scrapeErrorDescription=Ein Fehler ist aufgetreten bei dem Versuch, diesen Artikel zu speichern. Wenn dieser Fehler weiterhin auftritt, kontaktieren Sie bitte den Autor des Übersetzers.
 
-db.dbCorruptedNoBackup=Die Zotero-Datenbank wurde offensichtlich beschädigt und es gibt kein automatisches Backup.\n\nEine neue Datenbank wurde erstellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-db.dbRestored=Die Zotero-Datenbank wurde offensichtlich beschädigt.\n\nDie Daten wurde aus dem letztigen automatischen Backup vom %1$S um %2$S wiederhergestellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-db.dbRestoreFailed=Die Zotero-Datenbank wurde offensichtlich beschädigt, und der Versuch, die Daten aus dem letztigen automatischen Backup wiederherzustellen, hat nicht funktioniert.\n\nEine neue Datenbank wurde erstellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/de-DE/zotero/zotero.properties b/chrome/locale/de-DE/zotero/zotero.properties
index 4f7bdb51d..0e219f747 100644
--- a/chrome/locale/de-DE/zotero/zotero.properties
+++ b/chrome/locale/de-DE/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Artikel gespeichert.
 ingester.scrapeError=Artikel konnte nicht gespeichert werden.
 ingester.scrapeErrorDescription=Ein Fehler ist aufgetreten bei dem Versuch, diesen Artikel zu speichern. Wenn dieser Fehler weiterhin auftritt, kontaktieren Sie bitte den Autor des Übersetzers.
 
-db.dbCorruptedNoBackup=Die Zotero-Datenbank wurde offensichtlich beschädigt und es gibt kein automatisches Backup.\n\nEine neue Datenbank wurde erstellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-db.dbRestored=Die Zotero-Datenbank wurde offensichtlich beschädigt.\n\nDie Daten wurde aus dem letztigen automatischen Backup vom %1$S um %2$S wiederhergestellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-db.dbRestoreFailed=Die Zotero-Datenbank wurde offensichtlich beschädigt, und der Versuch, die Daten aus dem letztigen automatischen Backup wiederherzustellen, hat nicht funktioniert.\n\nEine neue Datenbank wurde erstellt. Die beschädigte Datei bleibt im Zotero-Ordner gespeichert.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/en-US/zotero/zotero.properties b/chrome/locale/en-US/zotero/zotero.properties
index 538b06f53..ba7333e83 100644
--- a/chrome/locale/en-US/zotero/zotero.properties
+++ b/chrome/locale/en-US/zotero/zotero.properties
@@ -226,9 +226,9 @@ ingester.scrapeComplete			= Item Saved.
 ingester.scrapeError			= Could Not Save Item.
 ingester.scrapeErrorDescription	= An error occurred while saving this item. Please try again. If this error persists, contact the translator author.
 
-db.dbCorruptedNoBackup			= The Zotero database appears to have become corrupted, and no automatic backup is available.\n\nA new database file has been created. The damaged file was saved in your Zotero directory.
-db.dbRestored					= The Zotero database appears to have become corrupted.\n\nYour data was restored from the last automatic backup made on %1$S at %2$S. The damaged file was saved in your Zotero directory.
-db.dbRestoreFailed				= The Zotero database appears to have become corrupted, and an attempt to restore from the last automatic backup failed.\n\nA new database file has been created. The damaged file was saved in your Zotero directory.
+db.dbCorruptedNoBackup			= The Zotero database '%S' appears to have become corrupted, and no automatic backup is available.\n\nA new database file has been created. The damaged file was saved in your Zotero directory.
+db.dbRestored					= The Zotero database '%1$S' appears to have become corrupted.\n\nYour data was restored from the last automatic backup made on %2$S at %3$S. The damaged file was saved in your Zotero directory.
+db.dbRestoreFailed				= The Zotero database '%S' appears to have become corrupted, and an attempt to restore from the last automatic backup failed.\n\nA new database file has been created. The damaged file was saved in your Zotero directory.
 
 zotero.preferences.update.updated = Updated
 zotero.preferences.update.upToDate = Up to date
diff --git a/chrome/locale/fr-FR/zotero/zotero.properties b/chrome/locale/fr-FR/zotero/zotero.properties
index a28d2788c..0610b40cb 100644
--- a/chrome/locale/fr-FR/zotero/zotero.properties
+++ b/chrome/locale/fr-FR/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Élément enregistré.
 ingester.scrapeError=Échec de l'enregistrement.
 ingester.scrapeErrorDescription=Une erreur s'est produite lors de l'enregistrement de cet élément. Veuillez réessayer. Si cette erreur persiste, contactez l'auteur du collecteur de données.
 
-db.dbCorruptedNoBackup=La base de données Zotero semble avoir été corrompue et aucune sauvegarde automatique n'est disponible.\n\nUn nouveau fichier de base de données a été créé. Le fichier endommagé a été enregistré dans le dossier Zotero.
-db.dbRestored=La base de données Zotero semble avoir été corrompue.\n\nVos données ont été rétablies à partir de la dernière sauvegarde automatique faite le %1$S à %2$S. Le fichier endommagé a été enregistré dans le dossier Zotero.
-db.dbRestoreFailed=La base de données Zotero semble avoir été corrompue et une tentative de rétablissement à partir de la dernière sauvegarde automatique a échoué.\n\nUn nouveau fichier de base de données a été créé. Le fichier endommagé a été enregistré dans le dossier Zotero.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/it-IT/zotero/zotero.properties b/chrome/locale/it-IT/zotero/zotero.properties
index 9d3c0fae0..aef26128c 100644
--- a/chrome/locale/it-IT/zotero/zotero.properties
+++ b/chrome/locale/it-IT/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Elemento salvato
 ingester.scrapeError=Impossibile salvare elemento
 ingester.scrapeErrorDescription=Si è verificato un errore durante il salvataggio dell'elemento. Provare nuovamente. Se l'errore persiste, contattare l'autore del motore di ricerca.
 
-db.dbCorruptedNoBackup=Il database di Zotero risulta essere corrotto e nessun backup risulta essere disponibile. \n\nÈ stato creato un nuovo database. Il file danneggiato è stato salvato all'interno della cartella di Zotero.
-db.dbRestored=Il database di Zotero risulta essere corrotto. \n\nI dati sono stati ripristinati dall'ultimo backup automatico eseguito il %1$S alle %2$S. Il file danneggiato è stato salvato all'interno della cartella di Zotero.
-db.dbRestoreFailed=Il database di Zotero risulta essere corrotto e il tentativo di ripristinare l'ultimo backup automatico ha dato esito negativo. \n\nÈ stato creato un nuovo database. Il file danneggiato è stato salvato all'interno della cartella di Zotero.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/ja-JP/zotero/zotero.properties b/chrome/locale/ja-JP/zotero/zotero.properties
index ad6c07f66..9bdef39b7 100644
--- a/chrome/locale/ja-JP/zotero/zotero.properties
+++ b/chrome/locale/ja-JP/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=アイテムを保存しました。
 ingester.scrapeError=アイテムを保存できませんでした。
 ingester.scrapeErrorDescription=アイテムの保存中にエラーが発生しました。もう一度試してください。それでもエラーが発生する場合、スクレーパの作成者までご連絡ください。
 
-db.dbCorruptedNoBackup=Zoteroのデータベースが破損しているようですが、自動バックアップはありません。\n\n新規データベース・ファイルが作成されました。破損されたファイルをZoteroフォルダに保存しました。
-db.dbRestored=Zoteroのデータベースが破損しているようです。\n\nデータは最終の自動バックアップ（%1$S %2$S）から復元されました。破損されたファイルをZoteroフォルダに保存しました。
-db.dbRestoreFailed=Zoteroのデータベースが破損しているようですが、データを最終の自動バックアップから復元できませんでした。\n\n新規データベース・ファイルが作成されました。破損されたファイルをZoteroフォルダに保存しました。
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/ko-KR/zotero/zotero.properties b/chrome/locale/ko-KR/zotero/zotero.properties
index be7663670..75251157f 100644
--- a/chrome/locale/ko-KR/zotero/zotero.properties
+++ b/chrome/locale/ko-KR/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=항목 저장됨.
 ingester.scrapeError=항목을 저장할 수 없습니다.
 ingester.scrapeErrorDescription=항목 저장중 오류가 발생했습니다. 다시 시도해 주세요. 오류가 지족적으로 발생하는 경우, 작성자에게 연락해 주십시오.
 
-db.dbCorruptedNoBackup=Zotero의 데이타베이스가 훼손되어 있는 것으로 보이며, 자동 백업본이 존재하지 않습니다. \n\n신규 데이타베이스·파일이 생성되었습니다. 파손된 파일을 Zotero 폴더에 저장했습니다.
-db.dbRestored=Zotero의 데이타베이스가 훼손되어 있는 것으로 보입니다. \n\n데이터는 최종 자동 백업(%1$S %2$S)으로부터 복원되었습니다. 파손된 파일을 Zotero 폴더에 저장했습니다.
-db.dbRestoreFailed=Zotero의 데이타베이스가 훼손되어 있는 것으로 보이며, 최종 자동 백업으로부터 복원에 실패했습니다. \n\n신규 데이타베이스 파일이 생성되었습니다. 파손된 파일을 Zotero 폴더에 저장했습니다.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/nb-NO/zotero/zotero.properties b/chrome/locale/nb-NO/zotero/zotero.properties
index 126a8a3b2..cf277cb8e 100644
--- a/chrome/locale/nb-NO/zotero/zotero.properties
+++ b/chrome/locale/nb-NO/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Element lagret.
 ingester.scrapeError=Kunne ikke lagre element.
 ingester.scrapeErrorDescription=En feil oppsto mens dette elementet ble forsøkt lagret. Vennligst prøv igjen. Vennligst kontakt forfatteren av oversetteren dersom denne feilen vedvarer.
 
-db.dbCorruptedNoBackup=Zotero-databasen synes å ha blitt korrupt, og ingen automatisk backup er tilgjengelig.\n\nEn ny database har blitt skapt. Den skadde filen ble lagret i Zotero-mappen.
-db.dbRestored=Zotero-databasen synes å ha blitt korrupt.\n\nDataene dine ble gjenopprettet fra den siste automatiske backupfilen, skapt %1$S den %2$S. Den skadde filen ble lagret i Zotero-mappen.
-db.dbRestoreFailed=Zotero-databasen synes å ha blitt korrupt, og et forsøk på å gjenopprette fra sist backup feilet.\n\nEn ny database har blitt skapt. Den skadde filen ble lagret i Zotero-mappen.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/nl-NL/zotero/zotero.properties b/chrome/locale/nl-NL/zotero/zotero.properties
index 86b9cc2fe..61a439a7e 100644
--- a/chrome/locale/nl-NL/zotero/zotero.properties
+++ b/chrome/locale/nl-NL/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Item Opgeslagen.
 ingester.scrapeError=Dit Item Kon Niet Opgeslagen Worden.
 ingester.scrapeErrorDescription=Er trad een fout op bij het opslagen van dit item. Probeer nogmaals. Indien deze fout zich nog voordoet, contacteer dan auteur van de site-vertaler.
 
-db.dbCorruptedNoBackup=De Zotero gegevensbank blijkt corrupt, en er is geen automatische backup beschikbaar. Er werd een nieuwe gevevensbank aangemaakt. Het beschadigde bestand werd opgeslagen in je Zotero map.
-db.dbRestored=De Zotero gegevensbank blijkt corrupt.\n\nJe data werden hersteld sinds de laatste automatische backup, aangemaakt op %1$S om %2$S. Het beschadigde bestand werd opgeslagen in je Zotero map.
-db.dbRestoreFailed=De Zotero gegevensbank blijkt corrupt, en een poging om te herstellen sinds de laatste automatische backup mislukte. Er werd een nieuwe gegevensbank aangemaakt. Het beschadigde bestand werd opgeslagen in je Zotero map.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/sr-YU/zotero/zotero.properties b/chrome/locale/sr-YU/zotero/zotero.properties
index aa50b1524..1c045a404 100644
--- a/chrome/locale/sr-YU/zotero/zotero.properties
+++ b/chrome/locale/sr-YU/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=Ставка сачувана.
 ingester.scrapeError=Ставка није могле бити сачувана.
 ingester.scrapeErrorDescription=Грешка је начињена током сачувавања ставке. Покушајте поново. Ако грешка остане, контактирајте аутора „преводиоца странице“.
 
-db.dbCorruptedNoBackup=Зотеро датабаза се игледа оштетила, а нема ни једне самонаправљене резервне копије. \n\nНова датотека датабазе је направљена. Остећена дадотека је сачувана у вашем Зотеро директоријуму.
-db.dbRestored=Зотеро дата база се изгледа оштетила.\n\nВаши подаци су обновљени из задње резервне копије самонаправљене %1$S у %2$S. Оштећена датотека је сачувана у вашем Зотеро директоријуму.
-db.dbRestoreFailed=Зотеро датабаза се игледа оштетила, а покушај да се подаци обнове из задње сачуване резервне копије није успео. \n\nНова датотека датабазе је направљена. Остећена дадотека је сачувана у вашем Зотеро директоријуму.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error
diff --git a/chrome/locale/zh-CN/zotero/zotero.properties b/chrome/locale/zh-CN/zotero/zotero.properties
index 9a07cbeb9..1db70405f 100644
--- a/chrome/locale/zh-CN/zotero/zotero.properties
+++ b/chrome/locale/zh-CN/zotero/zotero.properties
@@ -217,10 +217,6 @@ ingester.scrapeComplete=条目已保存.
 ingester.scrapeError=无法保存条目.
 ingester.scrapeErrorDescription=保存条目时发生错误. 请重试. 如果错误依旧, 请联系转换器作者.
 
-db.dbCorruptedNoBackup=Zotero 数据库似乎已损坏, 而且无可用的自动备份.\n\n已建立一新的数据库. 损坏的文件已保存到您的 Zotero 目录中.
-db.dbRestored=Zotero 数据库似乎已损坏.\n\n您的数据已经从最新的自动备份里恢复, 所使用的备份建立于%1$S 位于 %2$S. 损坏的文件已保存到您的 Zotero 目录中.
-db.dbRestoreFailed=Zotero 数据库似乎已损坏. 试图从最新的自动备份里恢复时失败. \n\n已创建一新的数据库. 损坏的文件已保存到您的 Zotero 目录中.
-
 zotero.preferences.update.updated=Updated
 zotero.preferences.update.upToDate=Up to date
 zotero.preferences.update.error=Error