Bewertet mit 5 von 5 Sternen

von sberg43 am Aug. 15, 2010 · Permanentlink

I too was unable to use this add-on after the update to Thunderbird 3.1.2. A nice replacement is "MinimizeToTray revived"
https://addons.mozilla.org/en-US/thunderbird/addon/12581/

(My rating is for the new add-on)