Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Problem with the automatic theme color switching (when using default theme) on macOS

  • No replies
  • 1 has this problem
  • 17 views
more options

I'm using macOS 11.0.1, with Automatic theme-switching enabled in System Preferences. In the evening, when the theme switches to Dark mode, Firefox's theme changes to Dark also. If I don't shut down my Mac, Firefox's theme will be Light in the morning, which is normal. However, if I shutdown my Mac completely in the evening and turn it back on the next morning, Firefox's theme keeps the last state (Dark) also my system's theme changes to Light. The only workaround is to change my Mac's theme to Dark/Light only, and change it back to Auto again.

I'm using macOS 11.0.1, with Automatic theme-switching enabled in System Preferences. In the evening, when the theme switches to Dark mode, Firefox's theme changes to Dark also. If I don't shut down my Mac, Firefox's theme will be Light in the morning, which is normal. However, if I shutdown my Mac completely in the evening and turn it back on the next morning, Firefox's theme keeps the last state (Dark) also my system's theme changes to Light. The only workaround is to change my Mac's theme to Dark/Light only, and change it back to Auto again.
Attached screenshots