Tab groups have become one of Firefox’s most loved ways to stay organized — over 18 million people have used the feature since it launched earlier this year. Since then, we’ve been listening closely to feedback from the Mozilla Connect community to make this long-awaited feature even more helpful.
I set media.autoplay.blocking_policy=2 and media.autoplay.default=5. That seems to prevent anything from auto playing for me.
Hmm I will look into those settings. But I’d like to control it site by site rather than thru a global config.