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Black box top left of the screen in firefox when maximized

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  • Last reply by Denys

weed_hopeanuoli
weed_hopeanuoli
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There is a black box on the top left corner whenever firefox is maximized. This problem appeared when I got my new computer screen (Asus 27" TUF Gaming VG27AQ1A, 170Hz WQHD). My old computer screen (23.6" VE247H LED, Full HD, 2ms, 10M:1) didn't have this issue.

Any help how to fix this issue?

There is a black box on the top left corner whenever firefox is maximized. This problem appeared when I got my new computer screen (Asus 27" TUF Gaming VG27AQ1A, 170Hz WQHD). My old computer screen (23.6" VE247H LED, Full HD, 2ms, 10M:1) didn't have this issue. Any help how to fix this issue?
Attached screenshots

All Replies (1)

Denys
Denys
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  • Top 10 Contributor
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Hello,

Try running Firefox in Troubleshoot Mode to see if you theme causes the issue (this mode temporarily disables all the add-ons).

Does the problem persist in Troubleshoot Mode?

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