Rated 5 out of 5 stars

Perfekt, funktioniert auch mit der neuesten Version. Mit dem Sync - Addon klappt sogar die Abstimmung mit dem Smartphone bzw. Android.
Danke !!

Rated 5 out of 5 stars

Very good, should be standard functionality. However on TB60 the icon looks a bit out of place. By adjusting the css rule to the following: list-style-image: url("chrome://messenger/skin/icons/address.svg"); you get the default icon from TB60

Rated 4 out of 5 stars

Very useful add-on. Mail has a tab, Lightning Calendar has a tab, Address book needs a tab, and now it has. This should really be a standard feature. I used to use pastismans AddressBookTab but this broke with Thunderbird 60. So glad there was an alternative.

Rated 1 out of 5 stars

Funktioniert leider nicht mehr mit der
aktuellen Version 60.3.0 64-Bit.

Rated 5 out of 5 stars

Yesss!
the functionality I was looking for since decades!
Love it!
works perfect with TB 52.9

Rated 1 out of 5 stars

Does not work for TB 52.7.0 (64-bit) LinuxMint, no button in "customize toolbar"

Tested. There is a button. Right click next to the main tabs.

Rated 5 out of 5 stars

I was introduced this program through a great AdvancedTasks.

This is also good!^^

This review is for a previous version of the add-on (1.2). 

Rated 5 out of 5 stars

...and should become the new default in Thunderbird!

https://bugzilla.mozilla.org/show_bug.cgi?id=1397623

This review is for a previous version of the add-on (1.2). 

Rated 4 out of 5 stars

This is a great idea, but even though it was just updated about 6 weeks ago, it already won't install in TB 53. Not much sense in using an Addon that may or may not be usable each time there's a version update. I edited the Install.rdf file so I could get a look at the Extension, and it definitely adds a convenience that is missing in TB. My personal preference is for the Contacts Sidebar extension, which is long out of date here on the Mozilla Addon site, though it can be downloaded from the authors web page. It is always visible from the main TB view, and it has several very useful functions beyond the obvious. It would be great if this addon had the option of being incorporated in the sidebar, but as I said, it is a nice convenience to have the Address Book handy on a tab as it is implemented here, instead of opening it each time in a separate window.

This review is for a previous version of the add-on (1.2). 

Rated 4 out of 5 stars

As I wrote in the subject, I found thi addon useful for my job, unfortunately when I installed it using TB52I got a black area where the button area of addressbook tab/window is and so I could not make any choiche. Probably the style colorcss must be reconsidered. If the author wants I can send him a screeshot of what happens.
Topoldo

This review is for a previous version of the add-on (1.0). 

Hi Topoldo,
i am currently working on this "bug".
The problem is, that thunderbird uses its own css for certain elements and i am not able to change this in a way that all themes are supported.
I have now an idea how to solve this issue and I hope to fix it this or next week.

*** new Version available color is fixed ***