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Firefox for Android does not follow system theme changes

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Firefox for Android does not follow system theme changes i.e. dark to light.

Discovered on Samsung Galaxy A22, Android 14 and Firefox 124.2.0

Steps to reproduce:

  1. Configure Android to automatically switch themes. For Samsung Galaxy this is Settings - Dark Mode Settings - Turn on as scheduled
  2. Wait until Android toggles theme from dark to light.
  3. Notice Firefox has a black border.
  4. Go into Application info for Firefox and force stop, then reopen
  5. Now notice it doesn't.

This is a reopen of this archived issue: 1421453

Firefox for Android does not follow system theme changes i.e. dark to light. Discovered on Samsung Galaxy A22, Android 14 and Firefox 124.2.0 Steps to reproduce: # Configure Android to automatically switch themes. For Samsung Galaxy this is Settings - Dark Mode Settings - Turn on as scheduled # Wait until Android toggles theme from dark to light. # Notice Firefox has a black border. # Go into Application info for Firefox and force stop, then reopen # Now notice it doesn't. This is a reopen of this archived issue: [https://support.mozilla.org/en-US/questions/1421453 1421453]

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