In addtion to the fixes the following features are added:
- delimiter for the postal address conversion: By default, Gmail's postal address is splitted by ", " and converted to Thunderbird's postal address. Now you can change the delimiter by the addon's option dialog.
- clearing preferences on uninstalling: When you uninstall the addon, all preferences that were made by the addon are removed. The addon sometimes does not work since its preferences are messed up by some reason. In such case, you can fix it by uninstalling and re-installing the addon.