Works perfectly and it's aesthetically pleasing. On GNU/Linux you need to have a running Tor daemon (system service) in order to connect to it.

Thanks a lot to the developer!! Years passed with no Onion Button and silly proxy addons. No more!

Seems to work OK, but has the annoying habit of disabling the "DNS over Socks" setting every couple of minutes, which means .onion sites become constantly unavailable and you still have to manually go into your network settings to re-enable that setting. At that point, why bother with the button; you're already in the screen where you can enable/disable your Tor proxy.

I can finally use Tor with domain exclusion list, thank you. Although, found a bug: the "Proxy DNS when using SOCKS v5" checkbox gets toggled off after list update, this makes .onion addresses unaccessible.
Also, the http://* filter does not work.

What about Tor Browser support? Particularly, it needs a switch to port 9150. I tried to change the port in extension's code, but then Firefox won't allow to install an extension with invalid signature.

It works