Firefix display Issues: something wrong with web display, some background image not load correctly
When I tried changing some settings of web font/color and theme, websites display seems wrong then. it seems the background image not loaded correctly and some HTML elements, like font color is not displayed correctly.
searchbox, buttons appeared in rough retangles
Make sure you allow pages to choose their own colors.
- Settings -> General: Fonts & Colors -> Colors: "Override the colors specified by the page with your selections above"
Try "Never" if the default "Only with High Contrast themes" isn't working.
Are you possibly using "Resist Fingerprinting" as that can also cause issues with content drawn on canvas ?