Firefox-UI-Fix/src/utils/_option.scss

@use "each";

@mixin Option($optionNames...) {
  @include each.AtEach("supports", $optionNames, "-moz-bool-pref", ("separator": " or ", "quoted": true)) {
    @content;
  }
}

@mixin NotOption($optionNames...) {
  @include each.AtEach("supports", $optionNames, "not -moz-bool-pref", ("separator": " or ", "quoted": true)) {
    @content;
  }
}