If you use the Gmail Manager extension for Firefox you probably have noticed that it could not log in today. It appears that Google has changed something with their protocol again.
However, the newest version 0.4.3.5 (dated for April 3rd) fixes this. I upgraded, and I’m able to receive gmail notifications again. I kinda felt disconnected without that little icon showing me how many emails I got so far.
Todd Long is the man! He fixed the extension the same day Google broke it! Wohoo!