After the long long wating in the review queue in AMO, Google Contacts has been reviewed by an AMO editor and been made public at AMO. It means you can download it without AMO account and can be notified when it is updated.
In order to become a public add-on, it must be reviewed by many users and has a high quality. Namely, it was be able to become a public add-on thanks to many discussion here and users' reviews at AMO.
Thank you for your comments and reviews for Google Contacts. Please let me hear your voice more and let's make Google Contacts more useful add-on.
Maximum number of backups: A backup file will created whenever it synchronizes Thunderbird and Google. So, many backups will be created. The option specifies the limit of backup files. If the number of backup files exceeds the limit the oldest file will be overwritten. Set 0 if you don't need the backup functionality.
Directory: The option specifies the location where backup files are created. Default setting is profile_directory/GoogleContacts/. Click the "Select directory" button to change the path. "Open directory" button opens the directory by a filer; it may not work depending on your environment.
Character encoding: The options specify each character encodings for Thunderbird and Google backups. By default, Thunderbird encoding is the value of intl.charset.default and Google encoding is UTF-16. In general, you don't need to modify the setting for Google but Thunderbird one may be wrong. In order to set up Thunderbird encoding, export your address book as "Comma Separated" file by Tools-Export menu of an address book window and see its encoding.
I've updated beta of Google Contacts. It includes fixes of the problems of the postal address conversion, which is newly added by v0.5b1. 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.
I've implemented postal address conversion between Thunderbird and Gmail. Please try Google Contacts 0.5b1.
The function is disabled default. You can enable it by the addon's option dialog. The Format listbox specify the fields to be synchronized and order. In the case of the image, Gmail's postal address will be the following format: Address1, Address2, City, State, Zip Code, Country.