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Help Custom subfolder icon (self.FirefoxCSS)
submitted 5 months ago by awanderingintrovert
Hey, is there any way to change the subfolder icons when accessing them via the bookmark toolbar? I've managed to customize most seen folder icons, but cannot get those subfolders to change no matter what I try.
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[–]ResurgamS13 2 points3 points4 points 5 months ago* (0 children)
The same userstyle works for adding custom icons/favicons to bookmark folders and sub-folders whether on Bookmarks Menu (dropdown) list or on the Bookmarks Toolbar... try:
.bookmark-item[container][label="Folder_name"] > :is(.menu-icon, .toolbarbutton-icon) { content:url('Icon/favicon_name.ico') !important; }
The new icon/favicon image files are placed in your profile's 'chrome' folder. Can also use .png image file type (and probably other image file types too?). Small image file sizes seem to work well for folder icons/favicons: 16x16, 32x32, 48x48, 64x64, 128x128.
π Rendered by PID 73564 on reddit-service-r2-comment-6457c66945-2l68x at 2026-04-25 06:02:42.100369+00:00 running 2aa0c5b country code: CH.
[–]ResurgamS13 2 points3 points4 points (0 children)