I use Firefox, but I’m quite confident all of these add-ons are available on chromium-based browsers too:
uBlock origin - I guess we all know what it does
imagus - allows to preview direct urls to images/videos by holding CTRL (or hovering them)
vimium - press F to have all the clickable elements of a webpage bind to a keys combination. Basically allows to navigate webpages with the keyboard
old reddit redirect - force reddit to display the old UI by redirecting pages to old.reddit.com
privacy redirect - force-redirects you to the privacy-respecting alternatives to YouTube, Twitter, Intagram, Maps
sponsorblock for youtube - crowdsourced extension that allows to skip product placements in YT videos
web archives - allows to see the archived version of a webpage on multiple providers
bitwarden’s browser extension if you use it
temporary containers - allows to create a temporary container if you quickly need to isolate a site from the rest of your browser storage (firefox only obv)
Translate Web Pages - found out about this a few days ago. Works good, I’ve been using it quite often and it’s pretty cool
I use Firefox, but I’m quite confident all of these add-ons are available on chromium-based browsers too:
Edit: added a few extensions to the list
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