--- a/im/modules/ibCore.jsm
+++ b/im/modules/ibCore.jsm
@@ -10,16 +10,17 @@ Cu.import("resource:///modules/imWindows
 Cu.import("resource:///modules/ibNotifications.jsm");
 Cu.import("resource:///modules/ibSounds.jsm");
 Cu.import("resource:///modules/imXPCOMUtils.jsm");
 
 var Core = {
   _events: [
     "account-disconnected",
     "browser-request",
+    "handle-xul-text-link",
     "quit-application-requested"
   ],
 
   get bundle() l10nHelper("chrome://instantbird/locale/core.properties"),
 
   initLibpurpleOverrides: function() {
     let forcePurple = Services.prefs.getCharPref("chat.prpls.forcePurple")
                               .split(",")
@@ -224,33 +225,41 @@ var Core = {
     /* We only display the account manager on startup if an account has crashed
        or if all accounts are disconnected
        In case of connection failure after an automatic reconnection attempt,
        we don't want to popup the account manager */
     if ((!hasActiveAccount && !isOffline) || (aIsStarting && hasCrashedAccount))
       this.showAccounts();
   },
 
-  observe: function(aSubject, aTopic, aMsg) {
+  observe: function(aSubject, aTopic, aData) {
     if (aTopic == "account-disconnected") {
       let account = aSubject.QueryInterface(Ci.imIAccount);
       if (!account.reconnectAttempt)
         this._showAccountManagerIfNeeded(false);
       return;
     }
 
     if (aTopic == "browser-request") {
       Services.ww.openWindow(null,
                              "chrome://chat/content/browserRequest.xul",
                              null, "chrome", aSubject);
       return;
     }
 
+    if (aTopic == "handle-xul-text-link") {
+      Cc["@mozilla.org/uriloader/external-protocol-service;1"]
+        .getService(Ci.nsIExternalProtocolService)
+        .loadURI(Services.io.newURI(aData, null, null));
+      aSubject.QueryInterface(Ci.nsISupportsPRBool).data = true;
+      return;
+    }
+
     if (aTopic == "quit-application-requested") {
-      this._onQuitRequest(aSubject, aMsg);
+      this._onQuitRequest(aSubject, aData);
       return;
     }
   },
 
   _onQuitRequest: function (aCancelQuit, aQuitType) {
     // The request has already been canceled somewhere else
     if ((aCancelQuit instanceof Components.interfaces.nsISupportsPRBool)
          && aCancelQuit.data)