Firefox

Hi everyone, This isn't the biggest issue, but it's a bit concerning, and I'm hoping someone knows a solution.

I have my autoplay settings to block audio and video, with just the default exceptions. However, certain sites, such as https://youtubetranscript.com/ will autoplay videos anyway. (Try pasting a URL of a YouTube video in there and search, and the results will immediately start playing, which is aggravating and has actually disturbed people before when I forget that's a thing that happens.)

I've done some searching, and checked about:config, but I think everything is okay in there.

I've also tested this in LibreWolf, where the exact same thing happened.

I also attempted to test it in Tor, but for some reason I am unable to connect to the Tor network right now.

I'm hoping I can find the root of the problem since clearly if it happens on this site, then it's likely to happen on others, and I'd rather not have videos autoplaying when I expect them not to.

This may or may not happen in other browsers, but it's still a Firefox issue, since Firefox presents us with a setting to disable autoplay, and one would expect it to work.

Edit: Bonus side note: ~~The reason I couldn't connect to Tor is the new version isn't working. The solution is to downgrade to 12.5.3 and disable automatic updates for now.~~ Bonus side note to my bonus side note: Turns out Microsoft flagged the latest version of Tor as a threat. Fuck Microsoft.

Edit: See solution by @[email protected] below