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weird default display/css for every website

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Since yesterday, every webpage I load reverts to weird default css/layout

Attached: examples of what twitter, youtube, and google search look like (blacked out identifying info)

I can't remember doing anything different that would have caused this, did not download anything the day it happened

I've disabled all themes & all extensions, same results I've tried different themes, same results I've downloaded and installed new version of firefox, same results I've cleared all cache, history, and cookies, same results I've turned firefox on and off again, same results I've turned my computer on and off again, same results Help!

Using: Firefox version: 91.0 Mac version: Big Sur 11.4

Any suggestions about how to resolve? thank you!

Since yesterday, every webpage I load reverts to weird default css/layout Attached: examples of what twitter, youtube, and google search look like (blacked out identifying info) I can't remember doing anything different that would have caused this, did not download anything the day it happened I've disabled all themes & all extensions, same results I've tried different themes, same results I've downloaded and installed new version of firefox, same results I've cleared all cache, history, and cookies, same results I've turned firefox on and off again, same results I've turned my computer on and off again, same results Help! Using: Firefox version: 91.0 Mac version: Big Sur 11.4 Any suggestions about how to resolve? thank you!
Angefügte Screenshots

Ausgewählte Lösung

Recent release notes say that Firefox automatically enables High Contrast Mode when "Increase Contrast" is checked on MacOS. It can be turned off in FF settings under General -> the Colors... button -> Override the colors specified by the page with your selections above -> Never.

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Alle Antworten (4)

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Hey there!

Here's a something I think you might find useful, on how to fix websites that look wrong

Hope I helped!

Kind regards,

Bithiah

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thanks for your response, should have added to list:

I've already tried everything suggested by "how to fix websites that look wrong"

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Ausgewählte Lösung

Recent release notes say that Firefox automatically enables High Contrast Mode when "Increase Contrast" is checked on MacOS. It can be turned off in FF settings under General -> the Colors... button -> Override the colors specified by the page with your selections above -> Never.

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Holy moly, that did it!! Turned off the increase contrast on my mac and everything went back to normal. Thank you!