If you do any client-side web application development you should start now getting to know the dev tools. They're just as functional as Chrome's but there are differences.
As far as extensions, well you already have the most important one. But I also like:
- ClearURLs: remove tracking elements from URLs automatically
- "I still don't care about cookies": automatically block most cookie permission popups
- Refined Hacker News: adds nice QoL features like highlighting new posts, extra links in the nav, etc.
- Vimium: vim keybindings for browser navigation
Have a rummage in about:config to switch off all the telemetry BS, pocket integration, and "experiments" that Firefox marketing likes to re-enable every six months or so
Firefox’s right click + Q to immediately focus on a DOM element in dev tools is such a powerful feature. I’d try to get that in your system if you’re a web dev.
You can get ublock origin on Firefox mobile
I'd strongly suggest switching to Librewolf [1] before you fully setup everything and get a bit locked-in. It's a friendly-fork of firefox, done right (imo); it stays up-to-date with upstream rapidly, and predominantly has the goal of enabling better privacy defaults.
Beyond that, I strongly prefer tridactyl [2] over things like vimium (if you plan to use a vim-like extension); redirector [3] is fabulous (I use it particularly to setup redirects to minimal front-ends like invidious).
All the best,
-HG
[1] https://librewolf.net/ [2] https://addons.mozilla.org/en-US/firefox/addon/tridactyl-vim... [3] https://addons.mozilla.org/en-US/firefox/addon/redirector/