I’ve seen a couple of reports of strange highlight text/background color combinations in Firefox 75. Authors can repair the issue by adding the following properties to the manifest.json file, but not interactively (the theme generator doesn’t have these fields):
- toolbar_field_highlight
- toolbar_field_highlight_text
Threads:
- https://support.mozilla.org/questions/1284318 - https://addons.mozilla.org/firefox/addon/pink-and-purple-blend/
- https://www.reddit.com/r/firefox/comments/fynw0y/text_in_the_awesomebar_does_not_get_highlighted/ - https://addons.mozilla.org/firefox/addon/space-fantasy-redux-redux/
Edit:
Also, the ColorfulTabs extension: https://www.reddit.com/r/firefox/comments/g1a0w6/urlbar_how_do_i_disable_the_light_blue/