There is a whitish rectangle displayed on the top left hand side of my display in 4K
As my question title says....
I have just attached a 4K 3840X2160 TV as a monitor and this whitish overlay is on my screen/display. Please see the attached image.
It isn't a big deal but is a little distracting and semi covers the TLHS of the menubar, the address bar and my bookmarks.
I am running Windows 10 64bit and Firefox is fully updated.
Chosen solution
You may have installed a lightweight theme (Persona) that is broken.
Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.
- Switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
- Do NOT click the "Refresh Firefox" button on the Safe Mode start window
- https://support.mozilla.org/kb/Safe+Mode
- https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
All Replies (5)
Hi louwin, unfortunately the screenshot didn't come through. Could you re-upload it? You can attach it to a reply:
https://support.mozilla.org/questions/1151620#question-reply
Sorry the image didnt go through....
Trying again....
I think that should have it....
Still doesnt show in the preview but thumbnail shows!?
Chosen Solution
You may have installed a lightweight theme (Persona) that is broken.
Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.
- Switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
- Do NOT click the "Refresh Firefox" button on the Safe Mode start window
You're right, Thanks cor-el :)
Virtually ALL my themes were the same except Default.
Have to find a theme I like that works.... Or maybe the theme authors will get it right now that they know!?
Thanks again :D
The Themes you likely have are just background images and not actual Complete Themes.