uBlock Origin

Everything else is personal preference. Though my honorary mention goes to Libredirect

Dark Reader

I haven’t see Dark Reader mentioned.

Note: If you have something bad that will make me uninstall it, please consider the consequences before posting. I fucking love this one.

Enhancer for youtube, tons of good features. Theming, better player controls. Better ad protection, and ability to default set a video quality

There’s a couple I use a lot at work that haven’t been mentioned yet:

Simple Tab Groups is basically multiple workspaces for Firefox. So I can have all my tabs for one project all grouped together.

Firefox Multi-Account Containers lets you create sandboxed sessions. If you ever need to be logged in to the same site for both Prod and Dev at the same time this makes it easy. Also if you’re trying to diagnose session issues it’s nice to be able to keep things separate. This is add-on that kept me using Firefox even back when it performed worse than Chrome and Google wasn’t as openly evil.

One that hasn’t been mentioned is I don’t care about cookies. Or something to that name. With it on your never see cookie setting notifications. I’m not super sure if it rejects them all or accepts them all. But it’s nice to not worry about it

I’ll go first, I’m on Firefox btw:

dom.webnotifications.enabled (in about:config): If you disable it it will get rid of those annoying notification pop-ups.

uBlockOrigin, Consent-O-Matic, Privacy Badger, Terms of Service Didn’t Read