URL: https://www.crunchyroll.com/

Browser / Version: Firefox 134.0
Operating System: Windows 10
Tested Another Browser: Yes Edge

Problem type: Something else
Description: Attempting to log in produces a "500 - Internal Error." This issue is not seen on a Chromium browser
Steps to Reproduce:
Go to Crunchyroll.com
Go to log in page
Log in
Log in fails with red banner reading "500 - Internal Error"

Attempted on Edge with no problems

View the screenshot

From webcompat.com with ❤️