Betygsatt 3 utav 5 stjärnor

... if it worked. A pity it does not on my 17.0.5 - after installing this addon it is not possible to write any new message at all. Nothing happens, when I click the "new message" button: neither new window nor new tab. So I deinstalled again and really hope that you will succeed in completing this needed add-on. The idea is perfect! Best would be if Thunderbird could implement this important feature anyway. I am so annoyed of switching between windows when I have to look up or want to copy something from another message. Good luck guys and hang on!