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URL: https://x.com/?failedScript=vendor

Browser / Version: Firefox 142.0
Operating System: Mac OS X 10.15
Tested Another Browser: Yes Safari

Problem type: Site is not usable
Description: Unable to login
Steps to Reproduce:
I think this happened after the MACOS upgrade to 15.6.1. Now I cannot login anymore.
This is the error message: Something went wrong, but don’t fret — let’s give it another shot.

⚠️ Firefox’s Enhanced Tracking Protection (Strict Mode) is known to cause issues on x.com

View the screenshot Screenshot
Browser Configuration
  • gfx.webrender.software: false
  • blockList: basic
  • channel: release
  • defaultUserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:142.0) Gecko/20100101 Firefox/142.0
  • hasTouchScreen: false
  • frameworks: {'fastclick': False, 'mobify': False, 'marfeel': False}
  • mixed active content blocked: false
  • mixed passive content blocked: false
  • tracking content blocked: false
  • btp has purged site: false

View console log messages

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Needs Triage
#173108

x.com - Unable to login

Opened: 2025-08-22
Reporter: lichtenbauer
Comments: 2
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