This bug depends on bug 43797. After we have the new combined leaner task/statusbar at the bottom it would make sense to make it hideable like other toolbars from the view menu. This would enable users to have a really minimal, lean chrome for browser and mail with maximum real estate for content. CC'ing eng, UI, PSM/security, PM and module owners to make sure everybody is cool with this change and that I am not overlooking any drawbacks.

This also puts us in parity with IE which allows you to collapse their status bar, via the same menu mechanism.

*** This bug has been marked as a duplicate of 45950 ***

Verified duplicate. German, please try to convince Ben to change his mind about this. :-)