diff --git a/suite/browser/navigator.js b/suite/browser/navigator.js
index 099cafc3b2..e696578c57 100644
--- a/suite/browser/navigator.js
+++ b/suite/browser/navigator.js
@@ -1462,10 +1462,8 @@ function loadURI(uri, referrer, flags)
 
 function BrowserLoadURL(aTriggeringEvent)
 {
-  var url = gURLBar.value;
-
   // Remove leading and trailing spaces first
-  url = url.replace(/^\s+/, '').replace(/\s+$/, '');
+  var url = gURLBar.value.trim();
 
   if (url.match(/^view-source:/)) {
     BrowserViewSourceOfURL(url.replace(/^view-source:/, ""), null, null);
diff --git a/suite/browser/pageinfo/pageInfo.js b/suite/browser/pageinfo/pageInfo.js
index 713e8015b4..3ac33158c5 100644
--- a/suite/browser/pageinfo/pageInfo.js
+++ b/suite/browser/pageinfo/pageInfo.js
@@ -1147,15 +1147,10 @@ function getAltText(node)
   return "";
 }
 
-// Copied from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
 // strip leading and trailing whitespace, and replace multiple consecutive whitespace characters with a single space
 function stripWS(text)
 {
-  var middleRE = /\s+/g;
-  var endRE = /(^\s+)|(\s+$)/g;
-
-  text = text.replace(middleRE, " ");
-  return text.replace(endRE, "");
+  return text.trim().replace(/\s+/g, " ");
 }
 
 function setItemValue(id, value)
diff --git a/suite/browser/viewPartialSource.js b/suite/browser/viewPartialSource.js
index 96bc64c9aa..7c667426e0 100644
--- a/suite/browser/viewPartialSource.js
+++ b/suite/browser/viewPartialSource.js
@@ -443,10 +443,7 @@ function getOuterMarkup(node, indent) {
     }
     break;
   case Node.TEXT_NODE: // Text
-    var tmp = node.nodeValue;
-    tmp = tmp.replace(/(\n|\r|\t)+/g, " ");
-    tmp = tmp.replace(/^ +/, "");
-    tmp = tmp.replace(/ +$/, "");
+    var tmp = node.nodeValue.replace(/(\n|\r|\t)+/g, " ").trim();
     if (tmp.length != 0) {
       str += '<span class="text">' + unicodeTOentity(tmp) + '</span>';
     }
diff --git a/suite/common/contentAreaClick.js b/suite/common/contentAreaClick.js
index f1077a526c..55c1949d1a 100644
--- a/suite/common/contentAreaClick.js
+++ b/suite/common/contentAreaClick.js
@@ -242,7 +242,7 @@
   function addToUrlbarHistory(aUrlToAdd)
   {
     // Remove leading and trailing spaces first
-    aUrlToAdd = aUrlToAdd.replace(/^\s+/, '').replace(/\s+$/, '');
+    aUrlToAdd = aUrlToAdd.trim();
 
     if (!aUrlToAdd)
       return;
diff --git a/suite/common/permissions/permissionsManager.js b/suite/common/permissions/permissionsManager.js
index 6399fd8095..f92bb394fd 100644
--- a/suite/common/permissions/permissionsManager.js
+++ b/suite/common/permissions/permissionsManager.js
@@ -151,8 +151,7 @@ function handleHostInput(aSiteField) {
 function trimSpacesAndScheme(aString) {
   if (!aString)
     return "";
-  return aString.replace(/(^\s+)|(\s+$)/g, "")
-                .replace(/([-\w]*:\/+)?/, "");
+  return aString.trim().replace(/([-\w]*:\/+)?/, "");
 }
 
 function btnDisable(aDisabled) {
diff --git a/suite/common/sidebar/customize.js b/suite/common/sidebar/customize.js
index f660d48d4d..e53f300cf5 100644
--- a/suite/common/sidebar/customize.js
+++ b/suite/common/sidebar/customize.js
@@ -76,9 +76,7 @@ function sidebar_customize_init()
   debug("Adding observer to all panels database.");
   all_panels.database.AddObserver(panels_observer);
 
-  allPanelsObj.datasources = allPanelsObj.datasources.replace(/^\s+/,'');
-  allPanelsObj.datasources = allPanelsObj.datasources.replace(/\s+$/,'');
-  allPanelsObj.datasources = allPanelsObj.datasources.split(/\s+/);
+  allPanelsObj.datasources = allPanelsObj.datasources.trim().split(/\s+/);
   for (var ii = 0; ii < allPanelsObj.datasources.length; ii++) {
     debug("Init: Adding "+allPanelsObj.datasources[ii]);
 
diff --git a/suite/common/sidebar/sidebarOverlay.js b/suite/common/sidebar/sidebarOverlay.js
index 6870d2fe3b..4d778562a6 100644
--- a/suite/common/sidebar/sidebarOverlay.js
+++ b/suite/common/sidebar/sidebarOverlay.js
@@ -1280,8 +1280,7 @@ function SidebarTogglePanel(panel_menuitem) {
     if (sb_panel_is_excluded(panel_menuitem)) {
       debug("Plucking this component out of the exclude list");
       replace_pat = new RegExp(sidebarObj.component + "\s*");
-      new_exclude = new_exclude.replace(replace_pat,'');
-      new_exclude = new_exclude.replace(/^\s+/,'');
+      new_exclude = new_exclude.replace(replace_pat, "").trimLeft();
       // did_exclude remains false
     } else {
       debug("Adding this component to the exclude list");