Since currently Lemmy is mostly made up of nerds, I'd like to know what browsers you use and why? You could just upvote the comment with your browser of choice if you don't want to explain.
I don't use many extensions, but those two are useful.
I like Keepa to track prices on Amazon and set alerts for deals. It's nice since it embeds a chart directly within Amazon product pages. I haven't reviewed their privacy policy for a while though (last time was a few years ago) so I don't know how much data they collect and for what purpose.
I switched from LastPass last year... Should have done it much earlier. I switch before LastPass' data breach but unfortunately I didn't delete my LastPass account until after the data breach.