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There is a white screen flash when firefox is being launched.

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There is a white screen flash when firefox is being launched. I've dark reader add-on enabled. There are no flashes opening new tabs. Any ideas how to make those irritating flashes disappear ? Thanks

There is a white screen flash when firefox is being launched. I've dark reader add-on enabled. There are no flashes opening new tabs. Any ideas how to make those irritating flashes disappear ? Thanks

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This is a general issue I also get for some tabs or websites try some steps: 1) change firefox appearance to dark mode 2) try another add on 3) if certain websites have dark mode setting then turn it on so next time it will be black 4) try to reset all firefox settings