Firefox

Aside from the popular ublock origin I'd get Sponsor Block. Too bad my mobile version doesn't support it.

Is there anything that disables / stops sticky videos when scrolling on mobile?

I get pissed off when I'm reading a news article, scroll down, and their headline video (often just an ad) clips itself to the top 1/3 of the screen.

AdNauseam. An AdBlocker that also creates a trail of Garbage Data to make users less valuable for Advertisers and Data Collection

Tab Stash.

uBlock Origin and Mouse Gestures.

Literally all I have ever used. I love mouse gestures so much because of Opera. I was using that for a bit before I discovered Firefox back in the day.

Lots of great extensions have been listed already, but here's one that I haven't seen mentioned yet and I really like: https://unhook.app/

Ever since Twitch Now stopped working, I found Gumbo which is working really well.

Others have already mentioned some excellent vertical tab add-ons, so I'll post Tabs Aside, which is a super convenient way to save and load a window full of tabs. Saves having like 20 windows open with different stuff you don't want to lose.

Stylus has been a pretty newish one for me, been using it a lot to make Lemmy feeds wider and take up my entire screen

There's also a convert webp to anything extension that is really handy to have

Video download helper is cool too

@Justly0250

Firefox Multi-Account Containers:
sandbox tab containers to isolate sites.
https://addons.mozilla.org/en-GB/firefox/addon/multi-account-containers/

Temporary Containers:
Open tabs, websites, and links in automatically managed disposable containers
https://addons.mozilla.org/en-GB/firefox/addon/temporary-containers/

Dark Background and Light Text:
dark mode all the things
https://addons.mozilla.org/en-GB/firefox/addon/dark-background-light-text/

@Justly0250

uBlock

The Internet is not the same without it.