The only real fault I've found is that the calendar icon in the tool bar always shows '31'. Very occasssionaly I notice that it displays the corect day of the month, for instance today is the 6th and when I started up firefox it showed '6' - but when I clicked the icon it reverted back to showing '31'. I've checked the my google calendar settings and can't see anyhting that might be resposible for this. Would be great to be able to see the correct day at a glimpse...

Great add on. One thing I have noticed is that if you pick a future date to add an event and then reboot Firefox later unless you have clicked the TODAY box it will open up the original date you selected to add a event. I have tested the same direct through Google Calendar (via google search) and that works fine. So the only thing I can think of is that it does not do a complete refresh from the original Calendar.

Please fix 1.5 version at new Material Design Google Calendar，Version 2.0 is useless.
thanks