iCloud login via Ubuntu and Firefox does not work

Currently, it is not possible to log in to iCloud on Ubuntu. When enter the password, I get allways "Identity could not be confirmed".

Tested with Ubuntu 24.04.5 and firefox 142.0 and other Ubuntu-Releases.

iCloud Login with Windows 10 and Firefox 142.0 does work.


It always worked in the past with Ubuntu: are there any known issues?

Posted on Aug 25, 2025 3:22 AM

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Posted on Sep 16, 2025 1:54 AM

In Firefox, open about:config address and add the parameter general.useragent.override to override the userAgent string. To get the right value,

  1. Open the console (F12)
  2. Type navigator.userAgent
  3. Copy/Paste the returned value into general.useragent.override parameter, then remove " Ubuntu;"
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iCloud login via Ubuntu and Firefox does not work

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