ozh/chrome.md

Created February 15, 2026 11:37

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Firefox custom chrome CSS : disable audio icon on tabs

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In about:config turn toolkit.legacyUserProfileCustomizations.stylesheets to true
Open folder %APPDATA%\Mozilla\Firefox\Profiles\, find one or more folders and go to the folder that has a lot of other folders.
Create a new folder named chrome and in that folder create file userChrome.css

.tab-audio-button {
    pointer-events: none !important;
}

This makes Firefox tabs audio icon not clickable.

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