diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
index c59faea73cd9..3fae0900af16 100644
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -4158,7 +4158,7 @@ var XULBrowserWindow = {
   startTime: 0,
   statusText: "",
   isBusy: false,
-  inContentWhitelist: ["about:addons", "about:permissions", "chrome://browser/content/syncProgress.xhtml"],
+  inContentWhitelist: ["about:addons", "about:permissions", "about:sync-progress"],
 
   QueryInterface: function (aIID) {
     if (aIID.equals(Ci.nsIWebProgressListener) ||
diff --git a/browser/components/about/AboutRedirector.cpp b/browser/components/about/AboutRedirector.cpp
index b03c012ae799..f7ac39a8a3a9 100644
--- a/browser/components/about/AboutRedirector.cpp
+++ b/browser/components/about/AboutRedirector.cpp
@@ -97,6 +97,8 @@ static RedirEntry kRedirMap[] = {
   { "sessionrestore", "chrome://browser/content/aboutSessionRestore.xhtml",
     nsIAboutModule::ALLOW_SCRIPT },
 #ifdef MOZ_SERVICES_SYNC
+  { "sync-progress", "chrome://browser/content/syncProgress.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT },
   { "sync-tabs", "chrome://browser/content/aboutSyncTabs.xul",
     nsIAboutModule::ALLOW_SCRIPT },
 #endif
diff --git a/browser/components/build/nsModule.cpp b/browser/components/build/nsModule.cpp
index 5dd5efc68d1f..672a9b398fcd 100644
--- a/browser/components/build/nsModule.cpp
+++ b/browser/components/build/nsModule.cpp
@@ -156,6 +156,7 @@ static const mozilla::Module::ContractIDEntry kBrowserContracts[] = {
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "sessionrestore", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
 #ifdef MOZ_SERVICES_SYNC
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "sync-tabs", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
+    { NS_ABOUT_MODULE_CONTRACTID_PREFIX "sync-progress", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
 #endif
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "home", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "permissions", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },