Ahrefs: Infinite Loop on Login
At 15-May-2023 15:00:00 I ended up in an infinite loop at Ahrefs: I could not login. There was no workaround. The browser in question is Firefox Version 113.0.1 (64-bit).
It is noteworthy that even a large internet company like Ahrefs is susceptible to these kind of errors.
Added 18-May-2023: Apparently this behaviour can be fixed by either clearing the Firefox useragent string, or setting the useragent string
Mozilla/5.0 (Macintosh; Intel Mac OS X 13_3_1) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.4 Safari/605.1.15
See How to change your user agent in Firefox.