Infinite Google ReCAPCHA loop trying to access archive.is using current Firefox from Linux. Just started today. Firefox is in "strict" mode. Disabled Privacy Badger for that site, and it didn't help. Tried private browsing, and it didn't help.

Is this part of Google's war against ad-blocking and non-Chrome browsers?

Yup, I get stuck in a loop.

Sometimes the audio recaptcha works. But, most of the time I can't understand the garbled audio.

Closing the tab always resolves the problem.