instantly worked, thanks

It does the trick perfectly but it lags, like a lot, my Mozilla Firefox, Unistalling it.

The popup window as of Firefox 58 does not have scroll bars, which makes this unusable. Might as well use bookmarks.

worked for awhile, but i would say just over this past week it has just stopped with any notifications at all. don't know if an update got pushed out that broke this.

Doesn't work . It doesn't even make any sound or give any kind of NOTIFICATION on my desktop OR on my laptop, of any incoming email. I've tried for MANY MONTHS, over and OVER and OVER again - NOTHING works. If there were at least SOME possibility, I would have had it working long ago already . There have been many highly qualified professional I.T. People here in my Guest House who have TRIED to sort this thing out - buit not even ONE of them could get this thing to work.

The popup is very helpful, however in Firefox 57 i have no scroll bars in the pop up making reading an email impossible. If it is going to use popup window it needs scrolling otherwise just open a new tab.

I preferred having the window as a pop-up from the icon instead of opening in a separate window or new tab. New version of this add-on is considerably less convenient and functional.