Not a full list, but these are my day to day extensions that I use the most:
UBlock Origin - (obviously)
600% Sound Volume - managing volume for tabs
Dark Reader - Dark theme, that works well for *most *sites. Sometimes I need to manually disable it for certain sites that don’t play well, but that’s pretty rare
Fake Data - fill forms with random generated data - for every site i need to sign up for and don’t want to use PII
addy.io - extension for add.io email forwarding service (subscription needed) generate random emails for every website i sign up for that direct to my main email. If I start getting spam, I know which alias it came from and which site I made it for
password manager extension of choice - I prefer Bitwarden, but I get a 1Password subscription free with work so that’s what I use to share password records with family
firefox container manager - very handy for work tabs, logging in with family credentials, etc
**I checked it out, and there’s no reply functionality (which I use especially for support tickets), the email forwarding doesnt have a separate app, so it’s a bit clunkier to organize each alias through the duckduckgo app/extension itself. I’ll stick with addy.io for my use, but good to know they have that.
I haven’t seen these mentioned but they are kinda niche though. I use them for work more than personal usecase but maybe someone else finds them useful.
Copy on select - highlighted text is automatically copied
Snap links - open multiple links or check several boxes using a click-drag interface
Besides what everyone else already said: Vimium-C. It lets you use Vim bindings in your browser. It’s also extremely customizable and even works with my bizzare keyboard setup.
vim is a text editor program which is the centerpiece of a lot of people’s workflow.
while vim itself alone is already impressively good, what makes it really stand out is the amount of Keybinds it has and how well you can use them.
hjkl for left up down right, for example. Sounds complicated, takes some getting used to, but after a while, it comes natural. hjkl in particular are great for navigation as that is where ur right hand is on the keyboard all the time, so no need to move it right hand to the arrow keys.
so a lot of other programs offer vim-like Keybinds to navigate or to do text stuff. This extension being one of them.
Im using Firefox/a fork of it - please note that many of the below mentioned extensions either only exist for Firefox or don’t work well with Chromium browsers due to manifest V3.
Despite uBlock, my first pick would be Tab Mix Plus. Firefox has yet to properly open up the API for tabs, so you still have to do some mucking around with internals, but TMP gives you multi-row tabs, specific tab-closing patterns, expanded right-click options, and a whole host of insanely useful tab features.
I have been using TMP almost since the beginning, a good 15+ years now, and consider it to be absolutely essential to a proper Firefox setup. I would be happy to punt my TMP config file to anyone interested.
Outside of what has already been mentioned, I still don’t care about cookies and cookie autodelete in tandem. The first accepts cookies. The second deletes them when you are done.
I was a mad Opera user about 25 years ago, it was the best browser by miles at the time. One feature it had was mouse gestures. Mouse gestures and uBlock origin are the only two extensions I can’t love without, but these lists never mention them so I feel like the only one who uses them.
It’s hard to explain how cool and quick it is to be able to control your browser with the mouse. Open/close tabs, navigate tabs, back/forward etc. It doesn’t sound useful, I’m usually a mad keyboard shortcut fiend. But with web browsing in particular, your hand is already on the mouse, scrolling.
The specific extension I use is Gesturefy, I encourage people to install it and give mouse gestures a go.
Ublock, decentralize, adblockplus, noscript, snowflake. (This is what I used on ff, but I use brave for a while now and its so much easier, brave + invidious)