If Windows high contrast mode is making it difficult to view some web pages, you can disable it in Firefox:
- In the Menu bar at the top of the screen, click and then select or , depending on your macOS version.Click the menu button and select .
- Select the panel and scroll down to Language and Appearance.
- Under Colors, click the
- In the drop-down menu under Override the colors specified by the page with your selections above choose
- Click to save your changes.