Looking at the comments, interest in privacy and adblocking seem high. But the actual addons suggested here are often redundant or even worse, make you easier to track. Instead, take a look at the Arkenfox wiki, which is more or less the gold standard for browser privacy. Both LibreWolf and Mullvad Browser, practically the most privacy/anonymity oriented browsers out there, right behind Tor, either rely on it or stick very closely to it.
I highly recommend reading the entire wiki from the start. You dont have to do everything it says, obviously, but even if you dont do anything it will give you a better understanding of browser privacy. And lastly, do not use Chrome or any chromium based browser if you care about privacy and a free and open internet. Even if you only use a chromium based browser, you help increase googles monopoly.

just installed darkReader, my retinas are thanking me

uBlock Origin

Decentraleyes

Consent-o-matic

These are essential to me. Consent o matic automatically fills out cookie pop-ups by opting out of everything for you. Some of these cookie things take a while to process which shows how devious they are set up

I love these types of posts. From the outset they seem mundane, but they are discussion provoking and I’m able to learn of new things at the same time.

My list (Firefox) 🙃

• Absolute Enable Right Click & Copy
• Bitwarden
• Don’t Fuck With Paste
• I still don’t care about cookies
• SponsorBlock
• uBlock Origin

Some of you have a LOT of addons, jeez.

Edit: Updated to use the /still/ don’t care about cookies addon. Thanks @stepan@lemmy.fmhy.ml

Not much myself to be honest.

• uBlock Origin, to make the web a bearable experience
• Yomichan for learning Japanese

And that’s it. I don’t really need much more.

Millenials to Snake People.

I don’t see any love for sidebery here, sadge

I highly recommend checking out Firefox Multi-Account Containers.

• Bitwarden
• Sponser Block
• LibRedirect
• Decentraleyes
• Cookie Block
• NoScript
• UntrackUrls
• Firefox Containers
• TOS;DR

• auto tab discard
• bitwarden
• dark reader
• enhancer for youtube
• livemark
• localcdn
• ublock origin
• tree style tabs
• tampermunkey
• sponsorblock

My must haves:

• Bitwarden
• Dark reader
• Ublock origin
• Video speed controller

I use…

• uBlock Origin
• BlockTube
• Readwise highlighter
• Ruffle.rs
• RSS Preview
• 1Password

• uBlock Origin
• Privacy Badger
• HTTPS Everywhere
• Firefox Relay
• NoScript (off 99% of the time since it’s not really needed)
• RES (until reddit does some stupid shit and bans it or something so I can finally quit it entirely)
• TinEye Reverse Image Search

That’s basically it. But after reading a few comments I added:

• Consent-o-matic
• Decentraleyes

• AdGuard Extra

• AdNauseam (uBlock Origin fork)

• Bitwarden

• Clickbait Remover for Youtube

• Custom Scrollbars

• Don’t accept image/webp

• Enhancer for Youtube

• Proton VPN

• RES

• Return Youtube Dislike

• Sponsorblock

• Thumbnail Rating Bar for Youtube

• Tree Style Tab

• Translate Web Pages

• uBlacklist (no more deviantart trash in image search)

• Redditsave (probably won’t need this anymore since i moved here)

• vidIQ Vision for Youtube (information on screen pleases me)

• Violentmonkey

• Youtube-shorts block

and thanks to the based commenters here, learned there were some userscripts for kbin and got the Dark Reader extension

• uBlock Origin
• Bypass Paywalls Plus
• I don’t care about Cookies
• Cookie AutoDelete

The Cookie addons work wonderfully together. IDCAC just accepts every cookie banner automatically, AutoDelete removes them after the tab was closed.