I installed this extension a long time ago, as a browser tracking protection tool similar to PrivacyBadger. I think it is objectionable that the nature of the extension has been changed to one that injects notifications into the contents of the webpages I visit, with the only alert to me of that change being the injection of notifications into the contents of webpages I visit.

And for what it's worth, I use a password manager and have used a few over the years, and I've never encountered such an obnoxious UI from one.