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Firefox issues with video playing and logins
(hexbear.net)
A place to discuss the news and latest developments on the open-source browser Firefox
Try a useragent switcher and spoof a different browser. See if its the sites you visit are throttling you for using FF. Worth a test.
I'm still getting greyed out login buttons on certain sites.
So its likely not your ISP or other site issues. Looks like in another comment you said it could be an add-on. Like debugging skyrim disable all addons and enable then one at a time till you find the problem. If you do find the problem you might want to check the addons git and report a bug if not already found.
I tried that disabling addons helps with certain sites but not others. I can't find a clean fix.
Maybe try an uninstall and reinstall.
Before you uninstall in Settings -> Privacy & Security -> Cookies and Site Data, clear all site data and cookies.
That's all I got. Best of luck!
thank you sweetie