Firefox

the ones that I actively use: Rotate and Zoom Image; Image extract; SVG Export; Simple mass downloader; PassLok Image Steganography; Color Changer; Save Screenshot; Behind the Overlay Revival

those that work in the background: Redirect AMP to HTML; Chameleon; JPEG XL Viewer; + the usual blockers & security

uBlock origin

uBlock Origin

Deepl

Tineye

Ublock Origin Dark Reader Proton Pass Zotero Betterfox UserJS

• Reopen closed Tabs

I often want to reopen a tab i recently closed, so this is very handy for me.

• Languagetool

On the fly rule-based Spelling check. Works very good and in many languages. And the best: It's Open Source.

• Facebook-, Google- and Microsoftcontainer

Uses the Firefox Tab-Container Fwature, to lock those companies in Tab-Groups just with themselves. I don't use Tab-Groups aside of that, so it comes in handy.

• Firefox Translate

• (Not really an extention, but still nice) Firefox Gnome Theme, for my personal machines and Firefox UI Fix for the machines at work to make Firefox look more at home on Linux and Windows.

• Checker Plus for Gmail - Great way for me to see incoming emails in multiple inboxes, and mark as read/unread or respond
• Open With - quickly open a webpage in another browser
• SponsorBlock for YouTube - skips ads and sponsor segments in YouTube videos
• uBlock Origin - The best adblocker
• Video Speed Controller - Allows you to change the speed of a video, outside the normally allowed range (some slower videos are much better at 3x)
• Snap Links - Lets you draw a rectangle and opens all links inside. Great for checking out a list of links, like the links in this comment, for example

Ublock Origin, Privacy Badger, LocalCDN, Multi Account Container and Dark Reader.

I see a lot of the same addons here, as one would reasonably expect, but I'm surprised there's been no mention of uMatrix. Using uMatrix and denying most elements by default, you can manually allow scripts, media, etc. per domain and save those rules for pages you go to often. It gives you more granular control than simply choosing to allow/deny all third-party scripts, and you can see exactly what's going on under the hood.

Swisscows search engine, can't live without it

Behind the overlay

Anyone here use AdNauseam?

@t0fr uBlock Origin, Bitwarden, Firefox Translations

uBlock Origin of course and Malwarebytes Browser Guard (because I'm fortunate enough to have one of those coveted lifetime keys)