Mute sound in Firefox tabs

Revision Information
  • Revision id: 111580
  • Created:
  • Creator: AliceWyman
  • Comment: mentioned Flash bug - see discussion
  • Reviewed: No
  • Ready for localization: No
Revision Source
Revision Content
Please update your version of Firefox for the latest features and security updates.

Firefox lets you identify noisy tabs and mute them in a single click. Silence tabs quickly without affecting your other tabs or windows.

When sound starts playing on a webpage, Firefox lets you know where it's coming from by displaying a speaker button in the tab:

speaker tab 42
Important: Tabs for pages with Flash content will not have a speaker button and you will not be able to mute the sound, if Flash Player version 20.0.0.235 is installed. This is a bug that should be fixed in a future Flash Player update.

Clicking the speaker button will turn the sound off or on for that tab alone:

Mute a tab

  1. Click the speaker button to turn off the sound for that tab.
    speaker tab 42
  2. A line will appear over the button to let you know that the sound is off:
    audio off tab 42

Unmute a tab

  1. Click the speaker button again to turn the sound back on.
    tab mute 42
  2. The line over the button will disappear to let you know that the sound is on.
    audio on tab 42
Keyboard shortcut: To mute or unmute a tab without a mouse, you can also press Ctrl + M while on the tab.