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@superbiche
Created August 24, 2016 14:08
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Disable sound indicator in Firefox tabs Useful if video is muted but the indicator is still visible (PLEASE keep this indicator if you play sound)
// Only pinned tabs
.tabbrowser-tab[pinned] :-moz-any(.tab-icon-overlay[soundplaying]) {
display: none;
}
// Any tab
.tabbrowser-tab :-moz-any(.tab-icon-sound,.tab-icon-overlay[muted]) {
display: none;
}
@Artfunkel
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Artfunkel commented May 6, 2017

This page is high up in Google search results so I'm going to hijack it to post a complete userstyle to do this job:

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
.tabbrowser-tab[pinned] :-moz-any(.tab-icon-overlay[soundplaying]) {
    display: none !important;
}

You can paste the above into a blank style created with the extension "Stylish".

Edit: now that Mozilla have downgraded extension support, you'll need to paste it into your UserChrome.css file.

@aesophor
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aesophor commented Dec 3, 2020

@Artfunkel Thanks so much. Finally a solution that really works.

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