cancel
Showing results for 
Search instead for 
Did you mean: 

FF 19.0 keeps switching to full-screen mode

Highlighted
New User

FF 19.0 keeps switching to full-screen mode

This is most annoying! I'll be happily working away when suddenly all my toolbars disappear. At first I had no idea what was going on, and would have to close and reopen FF to get them back, then I discovered that the browser was just switching arbitrarily into full screen mode. I've looked to see if maybe there is something in an inconvenient place that I'm accidentally clicking on to cause this, but no. It just happens for no reason. Is there a fix for this?

4 REPLIES
Site Moderator

Re: FF 19.0 keeps switching to full-screen mode

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe mode start window or otherwise make changes.
New User

Re: FF 19.0 keeps switching to full-screen mode

Sorry, should have said I already did that. Not the problem.

Site Moderator

Re: FF 19.0 keeps switching to full-screen mode

You may have a (hardware) problem with the F11 key on your keyboard.

New User

Re: FF 19.0 keeps switching to full-screen mode

For some reason, this has suddenly stopped happening. Browsers are weird sometimes.