diff --git a/chrome/content/zotero/preferences/preferences.js b/chrome/content/zotero/preferences/preferences.js
index 7eb87fb4a..fa9ebc7c3 100644
--- a/chrome/content/zotero/preferences/preferences.js
+++ b/chrome/content/zotero/preferences/preferences.js
@@ -67,8 +67,8 @@ function onDataDirUpdate(event) {
 	var buttonFlags = (ps.BUTTON_POS_0) * (ps.BUTTON_TITLE_IS_STRING)
 		+ (ps.BUTTON_POS_1) * (ps.BUTTON_TITLE_CANCEL);
 	var index = ps.confirmEx(window,
+		Zotero.getString('general.restartRequired'),
 		Zotero.getString('general.restartFirefox.singular'),
-		'',
 		buttonFlags,
 		Zotero.getString('general.restartNow'),
 		null, null, null, {});
diff --git a/chrome/content/zotero/xpcom/zotero.js b/chrome/content/zotero/xpcom/zotero.js
index ad04844a0..4575db66e 100644
--- a/chrome/content/zotero/xpcom/zotero.js
+++ b/chrome/content/zotero/xpcom/zotero.js
@@ -158,7 +158,8 @@ var Zotero = new function(){
 						+ (ps.BUTTON_POS_1) * (ps.BUTTON_TITLE_IS_STRING)
 						+ (ps.BUTTON_POS_2) * (ps.BUTTON_TITLE_IS_STRING);
 					var index = ps.confirmEx(win,
-						_startupError,
+						Zotero.getString('general.error'),
+						_startupError + '\n\n' +
 						Zotero.getString('dataDir.previousDir') + ' '
 							+ Zotero.Prefs.get('lastDataDir'),
 						buttonFlags, null,
@@ -328,8 +329,8 @@ var Zotero = new function(){
 			buttonFlags += (ps.BUTTON_POS_1) * (ps.BUTTON_TITLE_IS_STRING);
 		}
 		var index = ps.confirmEx(win,
+			Zotero.getString('general.restartRequired'),
 			Zotero.getString('general.restartFirefox.singular'),
-			'',
 			buttonFlags,
 			Zotero.getString('general.restartNow'),
 			forceRestartNow ? null : Zotero.getString('general.restartLater'),
diff --git a/chrome/locale/en-US/zotero/zotero.properties b/chrome/locale/en-US/zotero/zotero.properties
index aaf7b0572..4ff27f25e 100644
--- a/chrome/locale/en-US/zotero/zotero.properties
+++ b/chrome/locale/en-US/zotero/zotero.properties
@@ -1,5 +1,7 @@
+general.error						= Error
 general.dontShowWarningAgain			= Don't show this warning again.
 general.locate						= Locate...
+general.restartRequired				= Restart Required
 general.restartFirefox.singular		= Firefox must be restarted for the change to take effect.
 general.restartFirefox.plural		= Firefox must be restarted for the changes to take effect.
 general.restartNow					= Restart now