I'm on Gnome Shell 3.6.2, using Thunderbird 17. Modifying the localstore.rdf inplace did not help: Thunderbird kept resetting the values. However, renaming localstore.rdf to localstore.rdf.old and rebooting TB solved this issue for me, as suggested in https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/196058/comments/21
A brand new localstore.rdf file was created, without the "fullscreen" setting.
I'm on Gnome Shell 3.6.2, using Thunderbird 17. Modifying the localstore.rdf inplace did not help: Thunderbird kept resetting the values. However, renaming localstore.rdf to localstore.rdf.old and rebooting TB solved this issue for me, as suggested in https:/ /bugs.launchpad .net/ubuntu/ +source/ thunderbird/ +bug/196058/ comments/ 21
A brand new localstore.rdf file was created, without the "fullscreen" setting.