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Deletes your postal addresses, even with 'Synch Postal Addresses' selected. Creates duplicate entries. If you have Thunderbird & Google already in synch, it will re-download all Google entries and create doubles, and send Thunderbird to Google. When viewing in Google, Google is smart enough not to show duplicates. If you merge duplicates in Google, it successfully combines the two, but on next synch, this add-on will DELETE your Thunderbird entries, INCLUDE POSTAL ADDRESS! It does not copy the post address from Google!

这个评论是针对附加组件的一个早期版本的(0.3.6)。 

I'm sorry the add-on didn't work the way you wanted it to, but please read the add-on description before using the add-on, and especially before posting a review. You wouldn't drive a car without taking some sort of driver's education class, so don't use software without reading its description.

1) The option to sync postal address is clearly marked as EXPERIMENTAL for a reason, although it should work (if not please send me a log or a clear description of how to recreate the issue). gContactSync definitely will not delete any postal addresses if that checkbox is not checked.

2) The add-on description clearly states, in bold text, "When first setting up gContactSync 0.3 you should use a new address book. If you try to sync an address book with gContactSync that you already synchronized with a different add-on then you could get duplicates. 0.4 will merge contacts first." v0.4 will merge contacts during the first sync. Unless you choose that version it will not merge contacts. I'm not sure how I can more clearly mention that.

3) If you merge duplicates from Google's interface the duplicates in Thunderbird will disappear (as expected).