diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
index 759051e6c67..7d36ffedce0 100644
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -726,8 +726,8 @@ function xpinstallEditPermissions(aDocShell)
                    allowVisible   : true,
                    prefilledHost  : webNav.currentURI.host,
                    permissionType : "install",
-                   windowTitle    : bundlePreferences.getString("installpermissionstitle"),
-                   introText      : bundlePreferences.getString("installpermissionstext") };
+                   windowTitle    : bundlePreferences.getString("addonspermissionstitle"),
+                   introText      : bundlePreferences.getString("addonspermissionstext") };
     wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
                    .getService(Components.interfaces.nsIWindowMediator);
     var existingWindow = wm.getMostRecentWindow("Browser:Permissions");
diff --git a/browser/components/preferences/security.js b/browser/components/preferences/security.js
index 2760b3e2ade..48d5ab9ceaf 100644
--- a/browser/components/preferences/security.js
+++ b/browser/components/preferences/security.js
@@ -82,8 +82,8 @@ var gSecurityPane = {
 
     var params = this._addonParams;
     if (!params.windowTitle || !params.introText) {
-      params.windowTitle = bundlePrefs.getString("installpermissionstitle");
-      params.introText = bundlePrefs.getString("installpermissionstext");
+      params.windowTitle = bundlePrefs.getString("addonspermissionstitle");
+      params.introText = bundlePrefs.getString("addonspermissionstext");
     }
 
     document.documentElement.openWindow("Browser:Permissions",
diff --git a/browser/locales/en-US/chrome/browser/preferences/preferences.properties b/browser/locales/en-US/chrome/browser/preferences/preferences.properties
index cf2df57f9b7..35918b58446 100644
--- a/browser/locales/en-US/chrome/browser/preferences/preferences.properties
+++ b/browser/locales/en-US/chrome/browser/preferences/preferences.properties
@@ -38,12 +38,10 @@ labelDefaultFont=Default (%S)
 
 cookiepermissionstext=You can specify which web sites are always or never allowed to use cookies.  Type the exact address of the site you want to manage and then click Block, Allow for Session, or Allow.
 cookiepermissionstitle=Exceptions - Cookies
-installpermissionstext=You can specify which web sites are allowed to install software. Type the exact address of the site you want to allow and then click Allow.
-installpermissionstitle=Allowed Sites - Software Installation
+addonspermissionstext=You can specify which web sites are allowed to install add-ons. Type the exact address of the site you want to allow and then click Allow.
+addonspermissionstitle=Allowed Sites - Add-ons
 popuppermissionstext=You can specify which web sites are allowed to open popup windows. Type the exact address of the site you want to allow and then click Allow.
 popuppermissionstitle=Allowed Sites - Popups
-downloadpermissionstext=You can specify which web sites are allowed to download files to your computer. Type the exact address of the site you want to allow and then click Allow.
-downloadpermissionstitle=Allowed Sites - Downloading Software
 imagepermissionstext=You can specify which web sites are allowed to load images. Type the exact address of the site you want to manage and then click Block or Allow.
 imagepermissionstitle=Exceptions - Images
 invalidURI=Please enter a valid hostname