You may not have observed if to watch any webpage in full screen in Firefox, location bar and tab bar will not appear.But with simple about:config hack, we can able to set Firefox to show location bar and tab bar even in full screen mode for a webpage.

Gmail in full Screen in Firefox before

To set Firefox to show location bar and Tab bar in Firefox

1.Open Firefox and enter about:config in the address bar.

2.Click I’ll be careful, I promise! and in the Filter type browser.fullscreen.autohide,double click the entry shown to false.

Gmail in full screen after about config hack

3.That’s it now you can observe location bar and tab bar for a web page even in full screen also.

If you don’t want this feature, follow the above procedure and double click the entry to True.

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