ਜੁਲ 18, 2018 ਤੇ Josh Geenen (Developer) ਵੱਲੋਂ · ਪਰਮਾਲਿੰਕ

When the add-on is slow or uses a lot of memory it's generally caused by the fragile database format used by the Thunderbird address book, or more rarely by interference of a security program. It's generally best to delete the offending address book and re-sync with a new one when this happens.