If we could edit the hotkey that would be cool. I didn't like the F8 key.

"Copy PlainText" uses Shortcut F7. But F7 is occupied in Firefox under Windows for Caret Browsing. "Copy Plain Text WE" is better, F8 works.

Doesn't work with Firefox 57. A complete waste of my time.

It does, what it should. Isn't it possible anymore, to use it as standard copy function? F8 is a little bit weird.

Dodatek działa dobrze. Czy może Pan wprowadzić ustawienie, aby nie trzeba było wciskać za każdym razem F8?

Addons works well. Can you put a setting so you do not have to press F8 each time?