1 files changed, 1 insertions, 8 deletions
diff --git a/toolkit/mozapps/extensions/test/xpinstall/head.js b/toolkit/mozapps/extensions/test/xpinstall/head.js
index 33ac33c830..a114b6efcd 100644
--- a/toolkit/mozapps/extensions/test/xpinstall/head.js
+++ b/toolkit/mozapps/extensions/test/xpinstall/head.js
@@ -133,7 +133,6 @@ var Harness = {
       Services.obs.addObserver(this, "addon-install-failed");
 
       // For browser_auth tests which trigger auth dialogs.
-      Services.obs.addObserver(this, "tabmodal-dialog-loaded");
       Services.obs.addObserver(this, "common-dialog-loaded");
 
       this._boundWin = Cu.getWeakReference(win); // need this so our addon manager listener knows which window to use.
@@ -157,7 +156,6 @@ var Harness = {
         Services.obs.removeObserver(self, "addon-install-blocked");
         Services.obs.removeObserver(self, "addon-install-failed");
 
-        Services.obs.removeObserver(self, "tabmodal-dialog-loaded");
         Services.obs.removeObserver(self, "common-dialog-loaded");
 
         AddonManager.removeInstallListener(self);
@@ -512,7 +510,7 @@ var Harness = {
 
   // nsIObserver
 
-  observe(subject, topic, data) {
+  observe(subject, topic) {
     var installInfo = subject.wrappedJSObject;
     switch (topic) {
       case "addon-install-started":
@@ -553,11 +551,6 @@ var Harness = {
           );
         }, this);
         break;
-      case "tabmodal-dialog-loaded":
-        let browser = subject.ownerGlobal.gBrowser.selectedBrowser;
-        let prompt = browser.tabModalPromptBox.getPrompt(subject);
-        this.promptReady(prompt.Dialog);
-        break;
       case "common-dialog-loaded":
         this.promptReady(subject.Dialog);
         break;