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Youtube progress bar blocks half the video window!

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Today firefox prompted me to upgrade to the latest version, i upgraded to 75.0, then a problem began with youtube. whenever i hover the mouse over the video window the progress bar comes up with white background instead of being transparent as usual, and that huge white bar hides half the video window. i attached a picture, in the top the video is normal when the progress bar is hidden, but when i hover the mouse to bring the progress bar this white monster bar comes up and hides half the screen. the exact same thing happens when the video is full screen too.

i tried removing all plug-ins and extensions, it still happened.

i cleared cache, history, cookies, it still happened.

i logged off completely, it still happened when i played a video without being logged in.

i started firefix in safe mode, still happened in safe mode.

chrome, opera, and edge work alright on youtube. only firefox following today's update. Any help? Thanks

Today firefox prompted me to upgrade to the latest version, i upgraded to 75.0, then a problem began with youtube. whenever i hover the mouse over the video window the progress bar comes up with white background instead of being transparent as usual, and that huge white bar hides half the video window. i attached a picture, in the top the video is normal when the progress bar is hidden, but when i hover the mouse to bring the progress bar this white monster bar comes up and hides half the screen. the exact same thing happens when the video is full screen too. i tried removing all plug-ins and extensions, it still happened. i cleared cache, history, cookies, it still happened. i logged off completely, it still happened when i played a video without being logged in. i started firefix in safe mode, still happened in safe mode. chrome, opera, and edge work alright on youtube. only firefox following today's update. Any help? Thanks

Modified by fantonih

الحل المُختار

I don't fully understand this other workaround someone posted on Reddit. It seems to be a filter expression for uBlock Origin, if you use that add-on.

https://www.reddit.com/r/firefox/comments/fy6l1z/youtube_borked_with_new_firefox/fmytbrw/

Read this answer in context 👍 0

All Replies (6)

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There's currently an open bug about this issue (see bug 1628947).

It's related to the privacy.resistFingerprinting setting in Firefox. You can use the about:config page to set that preference to false and the white background should go away when you restart Firefox.

However, please note that turning off that preference is turning off a privacy feature, so do so at your own risk.

Modified by Wesley Branton

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Thanks for the help. i do not want to allow fingerprinting, i will wait for the fix. Thanks again.

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الحل المُختار

I don't fully understand this other workaround someone posted on Reddit. It seems to be a filter expression for uBlock Origin, if you use that add-on.

https://www.reddit.com/r/firefox/comments/fy6l1z/youtube_borked_with_new_firefox/fmytbrw/

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More information. It seems that Youtube is actively changing things that so far affects Firefox only. Even with the original problem I could still see video recommendations on the right side if the screen, but now they are gone and no longer appear without me changing anything.

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jscher2000 said

I don't fully understand this other workaround someone posted on Reddit. It seems to be a filter expression for uBlock Origin, if you use that add-on. https://www.reddit.com/r/firefox/comments/fy6l1z/youtube_borked_with_new_firefox/fmytbrw/

Thank you!!!!

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Well, it's a style rule, actually, so if you use Stylus, you can apply this as a temporary workaround: