Disable high contrast mode in Firefox

Revision Information
  • Revision id: 227526
  • Created:
  • Creator: Makxine
  • Comment: Fonts & Colors is now Language & Appearance
  • Reviewed: No
  • Ready for localization: No
Revision Source
Revision Content

By default, selecting 'Increase Contrast' on MacOS (System Preferences > Accessibility > Display) or enabling High Contrast Mode on Windows (Settings > Ease of Access > High Contrast) also enables High Contrast Mode in Firefox.

If Firefox's High Contrast Mode is making it difficult to view some web pages, you can disable it in about:preferences:

  1. In the Menu bar at the top of the screen, click Firefox and select Settings (select Preferences on older macOS versions).Click the menu button Fx89menuButton and select Settings.
  2. Select the General panel and scroll down to Language & Appearance.
  3. Click the Colors button.
  4. In the drop-down menu under Override the colors specified by the page with your selections above choose Never.
    high contrast fx desktop
  5. Click OK to save your changes.
Tip: Visit https://addons.mozilla.org/ for extensions that add more styles and functions to Firefox.