diff --git a/chrome/content/zotero-platform/mac/overlay.css b/chrome/content/zotero-platform/mac/overlay.css
index b68163f77..a0818694b 100644
--- a/chrome/content/zotero-platform/mac/overlay.css
+++ b/chrome/content/zotero-platform/mac/overlay.css
@@ -174,13 +174,24 @@
   -moz-border-image: url("chrome://zotero/skin/mac/viewbutton-middle-selected-down.png") 0 4 0 5 repeat stretch;
 }
 
-:root:not([active]) #zotero-view-tabbox > tabs > * {
-  color: #7C7C7C !important; /* remove this when we support click-through */
+#zotero-view-tabbox:-moz-window-inactive > tabs > * {
+  color: #7C7C7C !important;
   -moz-border-image: url("chrome://zotero/skin/mac/viewbutton-middle-inactive.png") 0 4 0 5 repeat stretch;
 }
 
-:root:not([active]) #zotero-view-tabbox > tabs > tab[selected=true] {
-  color: #C5C5C5 !important; /* remove this when we support click-through */
+#zotero-view-tabbox:-moz-window-inactive > tabs > tab[selected=true] {
+  color: #C5C5C5 !important;
+  -moz-border-image: url("chrome://zotero/skin/mac/viewbutton-middle-selected-inactive.png") 0 4 0 5 repeat stretch;
+}
+
+/* Since Fx4 doesn't recognize the -moz-window-inactive pseudoclass as valid, these have to be separate (duplicate) rules to be parsed */
+:root:not([active]) #zotero-pane:not([isFx4]) > #zotero-item-pane > #zotero-item-pane-content > #zotero-view-tabbox > tabs > * {
+  color: #7C7C7C !important;
+  -moz-border-image: url("chrome://zotero/skin/mac/viewbutton-middle-inactive.png") 0 4 0 5 repeat stretch;
+}
+
+:root:not([active]) #zotero-pane:not([isFx4]) > #zotero-item-pane > #zotero-item-pane-content > #zotero-view-tabbox > tabs > tab[selected=true] {
+  color: #C5C5C5 !important;
   -moz-border-image: url("chrome://zotero/skin/mac/viewbutton-middle-selected-inactive.png") 0 4 0 5 repeat stretch;
 }
 
@@ -220,6 +231,15 @@
   -moz-border-image: url("chrome://zotero/skin/mac/viewbutton-left-inactive.png") 0 4 0 6 repeat stretch;
 }
 
+/* Since Fx4 doesn't recognize the -moz-window-inactive pseudoclass as valid, these have to be separate (duplicate) rules to be parsed */
+
+:root:not([active]) #zotero-view-tabbox > tabs > :first-child,
+:root:not([active]) #zotero-view-tabbox > tabs > [first-visible],
+:root:not([active]) #zotero-view-tabbox > tabs[chromedir=rtl] > :last-child,
+:root:not([active]) #zotero-view-tabbox > tabs[chromedir=rtl] > [last-visible] {
+  -moz-border-image: url("chrome://zotero/skin/mac/viewbutton-left-inactive.png") 0 4 0 6 repeat stretch;
+}  
+
 :root:not([active]) #zotero-view-tabbox > tabs > tab:first-child[selected=true],
 :root:not([active]) #zotero-view-tabbox > tabs > tab[first-visible][selected=true],
 :root:not([active]) #zotero-view-tabbox > tabs[chromedir=rtl] > tab:last-child[selected=true],
diff --git a/chrome/content/zotero/xpcom/openurl.js b/chrome/content/zotero/xpcom/openurl.js
index e826d047b..261d8df8b 100644
--- a/chrome/content/zotero/xpcom/openurl.js
+++ b/chrome/content/zotero/xpcom/openurl.js
@@ -109,15 +109,15 @@ Zotero.OpenURL = new function() {
 		if(version == "0.1") {
 			var co = "sid=Zotero:"+encodeURIComponent(Zotero.version);
 			
-			for each(identifier in identifiers) {
-				co += "&id="+encodeURIComponent(identifier);
+			for(var i=0; i<identifiers.length; i++) {
+				co += "&id="+encodeURIComponent(identifiers[i]);
 			}
 		} else {
 			var co = "url_ver=Z39.88-2004&ctx_ver=Z39.88-2004"+
 				     "&rfr_id="+encodeURIComponent("info:sid/zotero.org:"+Zotero.version);
 			
-			for each(identifier in identifiers) {
-				co += "&rft_id="+encodeURIComponent(identifier)
+			for(var i=0; i<identifiers.length; i++) {
+				co += "&rft_id="+encodeURIComponent(identifiers[i])
 			}
 		}
 		
@@ -189,8 +189,8 @@ Zotero.OpenURL = new function() {
 			}
 			
 			// encode subsequent creators as au
-			for each(creator in item.creators) {
-				co += _mapTag((creator.firstName ? creator.firstName+" " : "")+creator.lastName, (item.itemType == "patent" ? "inventor" : "au"), version);
+			for(var i=0; i<identifiers.length; i++) {
+				co += _mapTag((creators[i].firstName ? creators[i].firstName+" " : "")+creators[i].lastName, (item.itemType == "patent" ? "inventor" : "au"), version);
 			}
 		}
 		
@@ -219,9 +219,9 @@ Zotero.OpenURL = new function() {
 		var coParts = co.split("&");
 		
 		// get type
-		for each(var part in coParts) {
-			if(part.substr(0, 12) == "rft_val_fmt=") {
-				var format = decodeURIComponent(part.substr(12));
+		for(var i=0; i<coParts.length; i++) {
+			if(coParts[i].substr(0, 12) == "rft_val_fmt=") {
+				var format = decodeURIComponent(coParts[i].substr(12));
 				if(format == "info:ofi/fmt:kev:mtx:journal") {
 					item.itemType = "journalArticle";
 					break;
@@ -257,8 +257,8 @@ Zotero.OpenURL = new function() {
 		// keep track of "aucorp," "aufirst," "aulast"
 		var complexAu = new Array();
 		
-		for each(var part in coParts) {
-			var keyVal = part.split("=");
+		for(var i=0; i<coParts.length; i++) {
+			var keyVal = coParts[i].split("=");
 			var key = keyVal[0];
 			var value = decodeURIComponent(keyVal[1].replace(/\+|%2[bB]/g, " "));
 			if(!value) {
@@ -411,7 +411,7 @@ Zotero.OpenURL = new function() {
 				}  else if(key == "rft.subject") {
 					item.tags.push(value);
 				} else if(key == "rft.type") {
-					if(Zotero.ItemTypes.getID(value)) item.itemType = value;
+					if(Zotero.Utilities.itemTypeExists(value)) item.itemType = value;
 				} else if(key == "rft.source") {
 					item.publicationTitle = value;
 				}
@@ -419,16 +419,16 @@ Zotero.OpenURL = new function() {
 		}
 		
 		// combine two lists of authors, eliminating duplicates
-		for each(var au in complexAu) {
+		for(var i=0; i<complexAu.length; i++) {
 			var pushMe = true;
-			for each(var pAu in item.creators) {
+			for(var j=0; j<item.creators.length; j++) {
 				// if there's a plain author that is close to this author (the
 				// same last name, and the same first name up to a point), keep
 				// the plain author, since it might have a middle initial
-				if(pAu.lastName == au.lastName &&
-				   (pAu.firstName == au.firstName == "" ||
-				   (pAu.firstName.length >= au.firstName.length &&
-				   pAu.firstName.substr(0, au.firstName.length) == au.firstName))) {
+				if(item.creators[j].lastName == complexAu[i].lastName &&
+				   (item.creators[j].firstName == complexAu[i].firstName == "" ||
+				   (item.creators[j].firstName.length >= complexAu[i].firstName.length &&
+				   item.creators[j].firstName.substr(0, complexAu[i].firstName.length) == complexAu[i].firstName))) {
 					pushMe = false;
 					break;
 				}
diff --git a/chrome/content/zotero/xpcom/translate.js b/chrome/content/zotero/xpcom/translate.js
index 02ae96aa8..5bc6aae70 100644
--- a/chrome/content/zotero/xpcom/translate.js
+++ b/chrome/content/zotero/xpcom/translate.js
@@ -939,8 +939,8 @@ Zotero.Translate.prototype._generateSandbox = function() {
 			var m = searchSandboxRe.exec(tempURL);
 			if(m) sandboxLocation = m[0];
 		}
-	//} else if(this._sandboxLocation) {
-	//	sandboxLocation = this._sandboxLocation;
+	} else if(this._sandboxLocation) {
+		sandboxLocation = this._sandboxLocation;
 	}
 	Zotero.debug("Translate: Binding sandbox to "+(typeof sandboxLocation == "object" ? sandboxLocation.document.location : sandboxLocation), 4);
 	
diff --git a/chrome/content/zotero/xpcom/utilities.js b/chrome/content/zotero/xpcom/utilities.js
index 4f4ace1e5..cb0c70a8c 100644
--- a/chrome/content/zotero/xpcom/utilities.js
+++ b/chrome/content/zotero/xpcom/utilities.js
@@ -261,17 +261,17 @@ Zotero.Utilities = {
 		var parts = [];
 		var splits = str.split(/(<a [^>]+>[^<]*<\/a>)/);
 		
-		for each(var split in splits) {
+		for(var i=0; i<splits.length; i++) {
 			// Link
-			if (split.indexOf('<a ') == 0) {
-				var matches = split.match(/<a ([^>]+)>([^<]*)<\/a>/);
+			if (splits[i].indexOf('<a ') == 0) {
+				var matches = splits[i].match(/<a ([^>]+)>([^<]*)<\/a>/);
 				if (matches) {
 					// Attribute pairs
 					var attributes = {};
 					var pairs = matches[1].match(/([^ =]+)="([^"]+")/g);
-					for each (var pair in pairs) {
-						var [key, val] = pair.split(/=/);
-						attributes[key] = val.substr(1, val.length - 2);
+					for(var j=0; j<pairs.length; j++) {
+						var keyVal = pairs[j].split(/=/);
+						attributes[keyVal[0]] = val.substr(1, keyVal[1].length - 2);
 					}
 					
 					parts.push({
@@ -503,6 +503,50 @@ Zotero.Utilities = {
 			nextSet();
 		}
 		nextSet();
+	},
+	
+	/**
+	 * Tests if an item type exists
+	 *
+	 * @param {String} type Item type
+	 * @type Boolean
+	 */
+	"itemTypeExists":function(type) {
+		if(Zotero.ItemTypes.getID(type)) {
+			return true;
+		} else {
+			return false;
+		}
+	},
+	
+	/**
+	 * Find valid creator types for a given item type
+	 *
+	 * @param {String} type Item type
+	 * @return {String[]} Creator types
+	 */
+	"getCreatorsForType":function(type) {
+		var types = Zotero.CreatorTypes.getTypesForItemType(Zotero.ItemTypes.getID(type));
+		var cleanTypes = new Array();
+		for(var i=0; i<types.length; i++) {
+			cleanTypes.push(types[i].name);
+		}
+		return cleanTypes;
+	},
+	
+	/**
+	 * Gets a creator type name, localized to the current locale
+	 *
+	 * @param {String} type Creator type
+	 * @param {String} Localized creator type
+	 * @type Boolean
+	 */
+	"getLocalizedCreatorType":function(type) {
+		try {
+			return Zotero.getString("creatorTypes."+type);
+		} catch(e) {
+			return false;
+		}
 	}
 }
 
@@ -810,50 +854,6 @@ Zotero.Utilities.Translate.prototype.doPost = function(url, body, onDone, header
 	}, headers, responseCharset);
 }
 
-/**
- * Tests if an item type exists
- *
- * @param {String} type Item type
- * @type Boolean
- */
-Zotero.Utilities.Translate.prototype.itemTypeExists = function(type) {
-	if(Zotero.ItemTypes.getID(type)) {
-		return true;
-	} else {
-		return false;
-	}
-}
-
-/**
- * Find valid creator types for a given item type
- *
- * @param {String} type Item type
- * @return {String[]} Creator types
- */
-Zotero.Utilities.Translate.prototype.getCreatorsForType = function(type) {
-	var types = Zotero.CreatorTypes.getTypesForItemType(Zotero.ItemTypes.getID(type));
-	var cleanTypes = new Array();
-	for each(var type in types) {
-		cleanTypes.push(type.name);
-	}
-	return cleanTypes;
-}
-
-/**
- * Gets a creator type name, localized to the current locale
- *
- * @param {String} type Creator type
- * @param {String} Localized creator type
- * @type Boolean
- */
-Zotero.Utilities.Translate.prototype.getLocalizedCreatorType = function(type) {
-	try {
-		return Zotero.getString("creatorTypes."+type);
-	} catch(e) {
-		return false;
-	}
-}
-
 /**
  * Translate a URL to a form that goes through the appropriate proxy, or convert a relative URL to
  * an absolute one