These are two extensions that can help you bypass reCAPTCHAs in just a couple of seconds for free!
This is actually really interesting considering the fact that captchas only job is to prevent this kind of stuff lol
- Buster: Captcha Solver for Humans (Chrome and Firefox)
This one requires some user interaction, but it may be possible to automate fully?
- TensorflowAI Captcha Resolver (Firefox only)
This one does it all automatically. But might be limited to some degree, you need to try yourselves.