I'm having this problem on a Mac OS X 10.9 system. I just installed Thunderbird for the first time. I have a dozen "reminders" up to a month old that I cannot dismiss. I can, however, close the window.
I'm having this problem on a Mac OS X 10.9 system. I just installed Thunderbird for the first time. I have a dozen "reminders" up to a month old that I cannot dismiss. I can, however, close the window.