Comment by Liquid_Fire

> I had to uninstall it as I started seeing captchas everywhere. The recaptcha v3 test page gave me a score of 0.1. After uninstalling this jumped to 0.9.

Wow, I had no idea this was the cause. I thought it was just Google straight up ranking Firefox lower (whether intentionally or due to bugs) because they don't care about fixing the experience for Firefox users.