723709 - Unknown bar appears above add-on bar in Firefox

Status: RESOLVED DUPLICATE of bug 723710

(Firefox :: Untriaged, defect)

Description

[crackme_hackyou]

Attachment: Untitled.jpg

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:10.0) Gecko/20100101 Firefox/10.0
Build ID: 20120129021758

Steps to reproduce:

Did not do anything specific to cause the problem. After upgrading to Firefox 8, the problem started to surface for me. All subsequent versions of Firefox show the same problem for me. So, there wasn't any specific action which I had taken to cause the issue. 


Actual results:

Since Firefox 8 onwards, whenever I load a page, I have mysterious different colour bars popping up and going away...

You can clearly see a black bar above the addon-bar.. Till the webpage is loaded, this bar appears and disappears randomly.. Once the webpage is loaded, it completely disappears, and everything becomes normal once again.

Don't seem to understand where the problem is.

First, I thought it was due to the theme "FXChrome", contacted its developer but it seems that it is not theme-related and is related to Firefox. Did a full complete uninstall of Firefox, however, the problem persists. 


Expected results:

There should not have been any such bar above the add-on bar like in previous versions of Firefox before Firefox 8.