We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Browser themes

  • 1 reply
  • 1 has this problem
  • 13 views
  • Last reply by Terry

more options

Since the latest update my screen comes up black background with white writing (DARK theme). Even changing theme and saving, bookmarks, history etc still have black background. If I shut FF and restart it, everything defaults to DARK theme. Hard to read and annoying. Is this a bug or how can I change permanently? Regards, Richard Ferguson.

Since the latest update my screen comes up black background with white writing (DARK theme). Even changing theme and saving, bookmarks, history etc still have black background. If I shut FF and restart it, everything defaults to DARK theme. Hard to read and annoying. Is this a bug or how can I change permanently? Regards, Richard Ferguson.

All Replies (1)

more options

A comprehensive review of the issue (which has raised a storm): https://support.mozilla.org/en-US/questions/1364418#answer-1474290

If that doesn't solve the issue, there is userChrome.css. Another user obtained partial success using autoconfig: https://support.mozilla.org/en-US/questions/1366357