topic Re: firefox blocks the windows task bar in Discussions

firefox blocks the windows task bar

rooroo — Sat, 15 Feb 2025 06:05:40 GMT

Hi,
I have a persistent issue with firefox on win 10 (updated). When firefox (v135) is maximised there is no windows task bar when the mouse cursor is moved to the bottom of the screen.
its only firefox, no other application does this. the other nag is this issue is random when other application are running in the back ground. they might be media player classic, explorer, thunder bird typical everyday programs. often the only way to fix it is minimize firefox, move task bar to the top of the screen then back to the bottom again, it lasts for a few hours before the issue come back again. most annoying, any ideas?

Re: firefox blocks the windows task bar

Scorpioz45 — Fri, 21 Feb 2025 23:34:55 GMT

Have this problem myself (Win10), starting several months ago and like most user find it annoying. This problem goes back almost a decade. There seems to be several suggested causes.

1 NVIDIA GeForce drivers. Not me, not a gamer and use onboard graphics

2 Problems related to resolving screen resolution. I would assume this would be a relatively simple fix certainly after a decade. Default FF settings should not be set to be always on top.

This has been a persistent problem and I suspect that it is some form of inadvertent or otherwise incompatibility that shifts with the overlap between FF and M$ Win updates.

However I have observed that my problem only occurs on normal FF. If I open a Private FF instance the problem does not seem to occur unless it is intermittent

Re: firefox blocks the windows task bar

Scorpioz45 — Sat, 22 Feb 2025 23:21:18 GMT

Small update that is a simple two step process and less torturous than dropping out of full screen and selecting other application and the maximising on return to FF.

In the Bronze age of Windows many techniques based on the Stone age tools of DOS where implemented and still work; sort of. Alt-Tab would step you round open windows. Still works but you are presented with a collage of open windows that you can select from.

Re: firefox blocks the windows task bar

rooroo — Wed, 09 Apr 2025 06:35:55 GMT

Thanks for that tip, I remember the bronze age well, now that you mention it. 30 years of GUI makes one forget ... until its fixed this will have to do.
Cheers 🙂

Re: firefox blocks the windows task bar

detektrius — Wed, 20 Aug 2025 17:32:30 GMT

I got the same glitch. The problem is purely Firefox. The app just somehow blocks sensitive windows areas. I'm not **bleep**ing programmer to figure it out but I don't have a problem with other browsers, and before there was no firefox

In general, in the window on the whole screen, when calling the start, the taskbar is hidden (start works normally) (apparently because the firefox is so important and solves it to block) and it is impossible to access the taskbar in any way than to remove firefox in the window
Briefly - normal operation begins only when the firefox window is inactive

It's some kind of **bleep**

Re: firefox blocks the windows task bar

detektrius — Fri, 05 Sep 2025 11:08:26 GMT

Turning on and off the fullscreen mode - corrects it once

Re: firefox blocks the windows task bar

DJDirk — Wed, 03 Sep 2025 23:45:15 GMT

Clicking on the 'Restore' then 'Maximise' icons in the top right corner of the window, in rapid sequence, seems to restore task bar functionality. It's a work-around, although it's not a fix.

Re: firefox blocks the windows task bar

seseiSeki — Thu, 04 Sep 2025 06:56:12 GMT

I've always set my Windows taskbar to automatically hide when not in use. I can't remember this happening on XP or Vista, but it definitely did happen on 7. I usually un-maximze Firefox, click the desktop, click the taskbar then maximize Firefox again. Although recently this doesn't work as reliably anymore, for whatever reason.

Re: firefox blocks the windows task bar

Shonk — Sun, 16 Nov 2025 19:30:30 GMT

This has been a problem with mulitple monitors and taskbar autohide in windows 10 for many years with firefox it doesnt do it in windows 11

firefox devs are never going to fix this they dont even run windows they nearly all run apple devices

Re: firefox blocks the windows task bar

SereneKaos — Thu, 19 Feb 2026 06:12:39 GMT

But it DOES do it in Windows 11......

Re: firefox blocks the windows task bar

Shonk — Tue, 10 Mar 2026 21:26:27 GMT

I may have found a fix run firefox in Compatibility mode for Windows 7 Windows 8 etc..

i havnt had it happen in about a hour

It may but luck or not time will tell

It has an annoying red undescore above the close button though

Re: firefox blocks the windows task bar

Shonk — Tue, 10 Mar 2026 23:10:51 GMT

Ok it is fixed but there's a further bug then if the title bar is unticked

this was reported a few months ago but was only fixed without compatibility mode used

another way to fix it is to have the title bar enabled but you get less screen space then ofc

https://www.reddit.com/r/firefox/comments/1ozk5x1/cannot_remove_title_bar_stays_as_a_very_thin/

the fix on reddit in about:config doesnt work btw..

its bugs on bugs all the way down

So i have a choice

1) A buggy Windows Taskbar autohide with Multi Monitors

2) I have to have Title Bar enabled on Firefox

3) A white line all around Firefox with Title Bar disabled