I'm not sure if I'm misunderstanding the intended features or if it's not fully working on macOS/quantum. I was looking to replicate Chrome's ability to select multiple tabs by clicking the actual tabs. If this addon is supposed to do that, it does not on v57 (macOS 10.12.6).

If you're only supposed to be able select tabs from the addon UI, then that's simply not what I'm looking for. Because I mostly want to be able to then drag those tabs out to their own window or to another _specific_ window. Having to do this via a context menu—and to a generic new window and not to the existing window that I'm targeting—makes it not worth the effort.

I realize this is probably a limitation of Firefox and the addon is doing the best it can with the APIs available. But while Quantum certainly is fast, it's all the little things like this that are making me want to go right back to Chrome after only a couple days.