Automatically mutes each new tab the instant it is opened.
What is AutoMute?
"AutoMute" is a Firefox add-on that instantly mutes each new tab when opened. It provides a convenient way to prevent audio from playing unexpectedly while browsing.
AutoMute may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.
AutoMute has earned a fairly good reputation and likely can be trusted.