How to change the position of the sound icon in a tab on Firefox

Firefox 136 has changed the position of the mute button near the tab mute button, causing users to press it by mistake. Instead of leaving the speaker icon in the new position, users can change it back to avoid pressing it by mistake, returning the speaker icon to its original position. Below are instructions for changing the position of the sound icon on tabs in Firefox.

Instructions to change the position of the sound icon on Firefox tabs

Step 1:

You type about:config in the address bar and then press Accept the Risk to access.

Step 2:

Next, you search for toolkit.legacyUserProfileCustomizations.stylesheets and change it to true .

Step 3:

Open a new tab in Firefox and type about:support in the browser bar. Find the Profile Folder group , then click Open Folder .

In this folder, we will create a new folder and name it chrome if you don't see it . If it does, click on this folder, create a new file with the name userChrome.css

Step 4:

Here you will enter the command to delete the sound icon.

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

Finally, save the file and restart your browser.

Micah Soto

Update 26 May 2025