i3 - making Firefox full screen inside its i3 container

Problem

So if you press F11 in Firefox, by default it goes 100% full screen.

If you want to put Firefox in an i3 workspace shared with other applications and make Firefox “full screen” inside its container, as presented below:

Firefox

Solution

In Firefox, in the URL bar type about:config.

Then change:

full-screen-api.ignore-widgets: true


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