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[Support] Firefox 115.8.0 ESR is failing Cloudfare's captcha (sopuli.xyz)

submitted 6 months ago* (last edited 6 months ago) by [email protected] to c/[email protected]

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Hello. For a couple of days my browser has been failing automated captchas when it is hosted by Cloudfare. Any other captcha service works well and lets me go trough.

This is happening on Firefox for Debian Linux 12 (apt). Doesn't happen on Firefox flatpak and Chromium apt.

What can I do to check further or to give more info?

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[–] [email protected] 15 points 6 months ago* (last edited 6 months ago)

Found the problem in my case. I had a user agent changer addon let to fake Chrome 123 on Windows 10. DIsabled it and it worked.