Support seems to have ceased since 2013, so may be time to find an alternative. BUT, for those having the Firefox bug where the dropdown box does not fully draw when you need to log back in, such that you can't see or click the log in link, I just stumbled on a solution!
The bug seems to result in a fixed amount of the dropdown being drawn. First it draws a list of your currently open windows and tabs, then the login box. If I have more than one Firefox window open, that pushes the login link too low. If I only have one window I can click it!