What's the deal with YouTube and Firefox? Why do ***NO*** YouTube videos work in Firefox anymore?
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Chosen solution
I don't know how to do a "safe mode". But I tried disabling various add-ons. I thought it was No-Script, but the results were sporadic. Then, being a person who has delt with the incredible insanity of the computer world for decades, it of course occurred to me to disable the YouTube Flash and HTML5 player. So I turned the YouTube Flash/HTML player off, and now YouTube Flash and HTML5 work. I should have known.
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hello, can you try to replicate this behaviour when you launch firefox in safe mode once? if not, maybe an addon is interfering here...
Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems
Chosen Solution
I don't know how to do a "safe mode". But I tried disabling various add-ons. I thought it was No-Script, but the results were sporadic. Then, being a person who has delt with the incredible insanity of the computer world for decades, it of course occurred to me to disable the YouTube Flash and HTML5 player. So I turned the YouTube Flash/HTML player off, and now YouTube Flash and HTML5 work. I should have known.