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Q&A Change colour of search markers in firefox scroll bar

Enter about:config in the address bar. Search for ui.textHighlightBackground and change its color value — you can use the #RRGGBB format or generic names such as "green". Note this al...

posted 2y ago by Quasímodo‭

Answer
#1: Initial revision by user avatar Quasímodo‭ · 2022-01-14T14:30:52Z (about 2 years ago)
1. Enter `about:config` in the address bar.

2. Search for `ui.textHighlightBackground` and change its color value — you can use the [#RRGGBB format][2] or generic names such as "green".

Note this also changes the highlight color of the matched text and that Firefox applies a default transparency value to the marks, so that a pure `#FF0000` red becomes fainter. There does not seem to be a way to disable that transparency filter.

References and attribution: [Bug report 1][0] and [bug report 2][1].

[0]: https://bugzilla.mozilla.org/show_bug.cgi?id=259640#c74
[1]: https://bugzilla.mozilla.org/show_bug.cgi?id=1690129
[2]: https://en.wikipedia.org/wiki/RGB_color_model#Numeric_representations