Middle-click on speaker indicator to disable (mute) sound

Question

Context: I used a to-me-usefull feature of Ubuntu 16.04 that was to disable (and turn back on) sound at middle-click on top-left speaker indicator (in addition to volume increase/decrease when scrolling).

Problem: On my fresh Ubuntu 18.04 install, only the scrolling feature works.

Question: How to make that a middle click on the speaker icon (the second from left on attached picture) enable/disable sound (i.e (un)mute sound) on Ubuntu 18.04?

Here is a ticket from the ubuntu-desktop-1804-cycle Trello concerning this topic — ebosi, May 01 '18 at 17:39

score 2 · Accepted Answer · answered Sep 25 '18 at 13:48

You can achieve this by using a GNOME shell extension called "Toggle Mute on Middle Click". As the name suggests, this extension lets you toggle mute by middle-clicking the volume indicator.

Refer to this question-and-answer to learn more about GNOME extensions: How do I install and manage GNOME Shell extensions?

Middle-click on speaker indicator to disable (mute) sound

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