I was going through the same ordeal as a Firefox user, so I've made Buster to solve challenges and reclaim some of that lost time: https://github.com/dessant/buster If you're a developer, please consider replacing reCAPTCHA on your site with an alternative. reCAPTCHA discriminates against people with disabilities and those who seek privacy, and it gaslights you into thinking you did not solve the challenge correctly,…
The problem with recaptcha alternatives is that they either are insecure or require time and money to continue to be ahead of bots. All of the "interactive stand-alone approaches" from that page can be beaten with run-of-the-mill OCR (other than perhaps the 3d challenge) and with almost any mobile phone speech recognition engine (and, if the attacker has the money, can send it off to Google's cloud speech-to-text). A…
There are also ways to reduce the damage reCAPTCHA causes, such as keeping it out of the default UX path. Discord for example will show a reCAPTCHA challenge on the login page only if you are signing in from a new location.
reCAPTCHA cannot effectively defend sites against targeted attacks either.