Rated 4 out of 5 stars

I have been using this add-on (ver. 0.8.29) with SeaMonkey on a Windows 7 machine for a couple of weeks on my main computer. It syncs with my Google standard account. Although I miss pictures, addresses, it gets the basic information like name, email, phone and fax along with notes (and Birthday's) down from the cloud to the computer where I can use it. (I sync around 500 contacts with different amounts of information, but I am not changing that information daily.)I have gone a little sync crazy over the last couple of years and sync my android phone, two "I" devices and three computers with that Google account. I was using Outlook and a 3rd party sync program prior to this, but the computer "died". Currently, two of the computers are now using Zindus with SeaMonkey. I recommend this add-on and hope the developer plans to expand it's capabilities in the area of pictures (I see that is planned for), and addresses (better handling) in the future.Thank you to the developer! (Ok, more personal, Thank you Leni!) Keep up the good work.

Followup... Just made a couple dozen changes (Mostly in Google mail, some in SeaMonkey address book and two on an IPad) to contact name, notes, email addresses and all synced smoothly and without error or duplication. Thanks again Leni.
(I like my pictures and addresses. That is why only 4 Stars. Function and quiet background performance is at 5* level.)

This review is for a previous version of the add-on (0.8.29).