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CloseReview for Zoiper Thunderbird Plugin by BiscuitFace
Rated 3 out of 5 stars
This extension would be a lot more useful if it picked up phone numbers in email content. At present it involves the Thunderbird Address Book which I personally don't use other than for auto-completing new emails.
This review is for a previous version of the add-on (1.04).To create your own collections, you must have a Mozilla Add-ons account.