Altering the AccentColor registry file outside of a color range that Windows does not support by default causes Firefox to have graphical glitches. The window either flas…
Altering the AccentColor registry file outside of a color range that Windows does not support by default causes Firefox to have graphical glitches. The window either flashes when you try to maximise it, or there are defects on the edges.
(The reason I'm alterign the registry file is so that my TitleBar in windows can become truly black, while retaining the colour schema in start)
The regkey is located at: Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM
I have a problem with Firefox where a white border is displayed around the sides and bottom of the window and I am unable to resize the window. No other applications appe…
I have a problem with Firefox where a white border is displayed around the sides and bottom of the window and I am unable to resize the window. No other applications appear to have this issue.
If I have more than one Firefox window open and click between them on the title bar, a classic Windows title bar and buttons is briefly displayed before being repainted. You can still see these slightly as part of the white border in the attached image.
Here's a summary:
- Windows 10 Professional, latest updates installed (Version 1903)
- Clean Windows installation, barely any applications installed
- No Firefox add-ons installed
- Have tried reinstalling Firefox several times
- Firefox Safe Mode is even worse, it is unusable, drawing only tiny pieces of the window or nothing at all
- Disabling Hardware acceleration for Firefox has the same effect as Safe Mode
- Although I think a virus is highly unlikely, I've run a full scan anyway with nothing found
- No other applications have this issue
- Windows 10 Professional is running inside the latest version of Parallels Desktop
- Connected to a 4K 32" monitor running at 100% scaling
- Changing scaling removes border but as soon as I resize once, white border reappears and I cannot resize
- Just tried disconnecting external display and running on laptop screen at various different resolutions, still no luck
Running inside a VM seems like the main point of difference - However I would have thought disabling hardware acceleration in Firefox would make that less relevant (instead, Firefox loses its mind with it off...).
It sounds very similar to this issue https://support.mozilla.org/en-US/questions/1250398 which does not seem to have any resolution. I've had this issue for a few months and was hoping perhaps the latest Windows update would have fixed it.
At the moment Firefox is unusable unfortunately.
Thanks in advance.