Rated 4 out of 5 stars

A proud Todd Long's Gmail Manager supporter, but I must say I'd uninstall the extension version 0.6 (which is unable to display emails subjects on KDE3 / KDE4.4 / Openbox on Linux !)
Following Rezwan's tip makes it all usable back; thank you very much Rezwan for sharing :D

This review is for a previous version of the add-on (0.6.1).