Many times Firefox takes a little time in launching on slower computer systems. You might ask why Mozilla team added a fake and non functional UI to Firefox? What’s its use? Actually there is a wise idea behind implementing this skeleton UI feature. You can consider it as a splash screen which are shown by many 3rd party software programs at startup.įollowing animated image shows the new skeleton UI feature live in action in Firefox browser: It just looks like real Firefox program window but actually it’s just a dummy screen. It works like a placeholder for the main Firefox window on your screen. not functional and you can’t do anything on the dummy UI. The dummy UI draws Firefox fake window frame or chrome containing tabs, address bar, toolbar, etc as shown in following screenshot:Īs the name suggests, the blank UI is dummy i.e. This feature draws a blank or empty UI on your computer screen which resembles with the actual Firefox UI, when you first launch Firefox browser.

Newer versions of Mozilla Firefox web browser such as version 89 and later come with a new feature called “ Skeleton UI“.

Mozilla firefox start page blank