This addon has a huge potential! You should make that the windows automatically get miximized, pixel sizeing in the opitons not always do the work. Also, you should work on getting a full screen view, but without hidding the windows bar, so it looks really like a Web App. Hope you take this suggestion.

only problem is the window wont dock like normal windows and you cant use the full screen button

Please add a keyboard shortcut and this will be a 5/5 extension!

This is what I was looking for, but if there could be a keyboard shortcut it would be perfect.

Popup works, but can't snap at screen edges like others do. Would be nice to add snappable windows.

Would be nice to be able to turn back into tab. Otherwise, very nice. Good for video, in conjunction with "Maximize video" extension.

Very neat. However window title (in taskbar) is reported as the URL, not the page/tab title (i.e. not the same as Firefox behaviour for active tab). Adding an option for this would be an improvement.

How set pop-up windows as always on top?

When watching YT videos (embeded) the picture freezes after sometime, until I hover cursor over it. Otherwise I love the add-on, just what I wanted.

Good addon; it does what it promises. What would be a great addition is a hotkey to pop-up/merge back the current tab (even better if customizable, but a fixed hotkey would be ok too). This should be helpful for power users who like a minimalist UI and don't want to touch the mouse at all if possible.

It is not perfect however; sometimes the popup window which is created cannot be maximized, and the merging back into the main window behaves weirdly when you have multiple normal browser windows open. This is probably not the developer's fault and somehow related to WebExtensions, but it would be nice if those kinks where ironed out in the future.