If only it was easier to remove the default tabs from firefox so you don’t have duplicate tabs. I recently had problems getting the userCSS to do its thing, trying different directories. In the end the problem however was that I tried to link it with a symbolic link which for some reason doesn’t work.
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.
LibRedirect - redirects common proprietary sites to a free and open source alternative
Tampermonkey - allows you to find and install custom open source scripts that add functionality to websites
These are a bit unique from the lists everyone else has, I think:
Lemmy Keyboard Navigation (like the kbd shortcuts from RES)
Google Popup Blocker (stop the annoying log in with Google popups everywhere on the web)
OneTab (this one lets you collapse a whole window of tabs down into a list in the OneTab tab that you can later reexpand into a window again when you re-attack whatever subject all the tabs were about)
These are the more standard ones that everyone seems to run:
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)