Bug 1219495.

browser/base/content/browser.js

@@ -816,6 +816,7 @@ function gKeywordURIFixup({ target: browser, data: fixupInfo }) {
 // A shared function used by both remote and non-remote browser XBL bindings to
 // load a URI or redirect it to the correct process.
 function _loadURIWithFlags(browser, uri, params) {
+
   if (!uri) {
     uri = "about:blank";
   }

g4limhoj.patch

@@ -0,0 +1,32 @@
+commit 6af0d74f913c6a2f1a813330d7576af91b8c2b79
+Author: hojun0404 <hojunlim89@gmail.com>
+Date:   Fri Feb 26 14:27:15 2016 -0500
+
+    fixed bug -- final solution
+
+diff --git a/toolkit/mozapps/extensions/content/extensions.js b/toolkit/mozapps/extensions/content/extensions.js
+index 5feff4b..9ea923c 100644
+--- a/toolkit/mozapps/extensions/content/extensions.js
++++ b/toolkit/mozapps/extensions/content/extensions.js
+@@ -2248,7 +2248,7 @@ var gDiscoverView = {
+                         Ci.nsIWebProgressListener.STATE_IS_REQUEST |
+                         Ci.nsIWebProgressListener.STATE_TRANSFERRING;
+     // Once transferring begins show the content
+-    if (aStateFlags & transferStart)
++    if ((aStateFlags & transferStart) && (this.node.selectedPanel != this._error))
+       this.node.selectedPanel = this._browser;
+
+     // Only care about the network events
+@@ -2275,9 +2275,9 @@ var gDiscoverView = {
+         (aRequest && aRequest instanceof Ci.nsIHttpChannel && !aRequest.requestSucceeded)) {
+
+       //------------------------------------------
+-      if(!aRequest.requestSucceeded){
+-        alert("<Make this alert more firendly>\nNo network Connection can be found");
+-      }
++      //if(!aRequest.requestSucceeded){
++      // alert("network Connection can be found");
++      //}
+       //------------------------------------------
+       this.showError();
+

toolkit/mozapps/extensions/content/extensions.js

@@ -2079,10 +2079,11 @@ var gDiscoverView = {
       this._browser.homePage = this.homepageURL.spec;
       this._browser.addProgressListener(this);
 
-      if (this.loaded)
+      if (this.loaded){
         this._loadURL(this.homepageURL.spec, false, notifyInitialized);
-      else
+      }else{
         notifyInitialized();
+      }
     }
 
     if (Services.prefs.getBoolPref(PREF_GETADDONS_CACHE_ENABLED) == false) {
@@ -2173,18 +2174,20 @@ var gDiscoverView = {
 
   _loadURL: function(aURL, aKeepHistory, aCallback) {
     if (this._browser.currentURI.spec == aURL) {
-      if (aCallback)
+      if (aCallback){
         aCallback();
+      }
       return;
     }
 
-    if (aCallback)
+    if (aCallback){
       this._loadListeners.push(aCallback);
+    }
 
     var flags = 0;
-    if (!aKeepHistory)
+    if (!aKeepHistory){
       flags |= Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY;
-
+    }
     this._browser.loadURIWithFlags(aURL, flags);
   },
 
@@ -2245,7 +2248,7 @@ var gDiscoverView = {
                         Ci.nsIWebProgressListener.STATE_IS_REQUEST |
                         Ci.nsIWebProgressListener.STATE_TRANSFERRING;
     // Once transferring begins show the content
-    if (aStateFlags & transferStart)
+    if ((aStateFlags & transferStart) && (this.node.selectedPanel != this._error))
       this.node.selectedPanel = this._browser;
 
     // Only care about the network events
@@ -2270,7 +2273,14 @@ var gDiscoverView = {
     const NS_ERROR_PARSED_DATA_CACHED = 0x805D0021;
     if (!(Components.isSuccessCode(aStatus) || aStatus == NS_ERROR_PARSED_DATA_CACHED) ||
         (aRequest && aRequest instanceof Ci.nsIHttpChannel && !aRequest.requestSucceeded)) {
+
+      //------------------------------------------
+      //if(!aRequest.requestSucceeded){
+      // alert("network Connection can be found");
+      //}
+      //------------------------------------------
       this.showError();
+
     } else {
       // Got a successful load, make sure the browser is visible
       this.node.selectedPanel = this._browser;