Ability to lock the toolbar

[WaffleDestroyer]

I often drag down particular tabs to separate them from the current window & open them in a new one. Occasionally, I fail to drag them far enough and they end up being added to my toolbar.

It'd be awesome if we had a feature to lock the toolbar, so it's impossible to add/remove anything to/from it without unlocking again. (Kinda like the feature that allows you to lock the home screen on Android)

[Jon]

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