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CloseDeveloper reply by Josh Geenen
Rated 1 out of 5 stars
Using TB 63.0g1, gContactSynch 3.0.0
Install is not working. Please Update
This add-on does not work properly in TB 60.0 and later. I'm tracking my progress towards supporting 63+ in https://github.com/jdgeenen/gcontactsync/issues/121. Thunderbird's rate of making breaking changes has outpaced my spare time, so your patience is appreciated.
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