recent firefox versions need a setting explicitly enabled in order for it to look at any of the custom configuration in a profile like userChrome.css userContent.css and user.js
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package = pkgs.firefox.override { cfg = { enableGnomeExtensions = true; }; };
package = pkgs.firefox.override {
cfg = {
enableGnomeExtensions = true;
};
profiles.mine = { id = 0;
profiles.mine = {
id = 0;
profiles.me = { name = "me";
profiles.me = {
name = "me";
# allows firefox to see userChrome.css etc "toolkit.legacyUserProfileCustomizations.stylesheets" = true; # https://wiki.archlinux.org/title/HiDPI#Firefox "layout.css.devPixelsPerPx" = "2.0";
# allows firefox to see userChrome.css etc
"toolkit.legacyUserProfileCustomizations.stylesheets" = true;
# https://wiki.archlinux.org/title/HiDPI#Firefox
"layout.css.devPixelsPerPx" = "2.0";