Love the whole Proton suite for the privacy.

This extension is clean and, for the most part, responsive. It detects when you're creating a login on a new site and auto-adds it to your account, it detects when you're trying to log in and auto-fills the info for you, it offers to create a hide-your-email alias which you can later disable if you get spam emails sent to that alias, and more.

Detection isn't perfect and sometimes won't automatically work, but it's still very simple to click the extension, click the text to copy it, and paste it into the field.

I love Bitwarden and really appreciate their pricing, but ended up switching to Proton because I already had my email with them. As of this writing, I think the Proton apps and extensions have a leg up on Bitwarden.