Thunderbird Contacts

Update: The add-on has been removed by the author. There is no comparable extension available at this point in time.
Duplicate contacts are an issue on today's Internet for many users. Many web services, including email or social networking sites, maintain a contacts - or friends - database, which consists of people the account owner knows. It is sometimes possible to synchronize or import contacts, but more often than not that is not the case.
This results in a handful of independent contact databases that are not linked to each other and often contain duplicate contacts.
Thunderbird Contacts is a new add-on by the Mozilla Labs Team that is based on Firefox Contacts. The add-on tries to evolve " the address book of Thunderbird beyond what it currently is today".
The idea behind the add-on originates from the fact that contact information are not necessarily only available in the address book of the email client, but also on websites and services.
Thunderbird Contacts currently supports services like Facebook, Gmail, Twitter, Yahoo!, LinkedIn and Plaxo, next to the Thunderbird address book and the Mac address book.

The add-on adds a contacts link under the Tools menu after installation. Contacts opens in a new tab in the email client with four sub-tabs available that lead to the add-on's functionality.
The default page, Contact Services, allows a Thunderbird user to connect the email client to supported web services in order to pull contact information from them.
The add-on automatically retrieves the information, and tries to merge the new contact information with existing information. In addition to that, the contact finder service tries to find additional information about a contact by pulling information from Facebook, Twitter or Flickr among others.
Options are to enable finder services automatically when contacts are first added, when a contact is viewed, or when requested from the contact detail view.

A video has been created to demonstrate Thunderbird Contacts.
Thunderbird users who want to try Thunderbird Contacts can download the add-on from the Thunderbird add-on repository. The add-on is only compatible with Thunderbird 3.1x to 3.2x versions.
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You said that Outlook isn’t your main email client, so which is your main one?
I think its thunderbird
It is Mozilla Thunderbird.
Awesome! This actually solved my problem… what a stupid bug.
If this is the same bug that I’ve encountered, there may be another fix: (1) hover over open Outlook item in Taskbar, cursor up to hover over Outlook window item, and right-click; (2) this should give you Restore / Move / Size / Minimize / Maximize — choose Move or Size; (3) use your cursor keys, going arbitrarily N/S/E/W, to try to move or size the Outlook window back into view. Basically, the app behaves as though it were open in a 0x0 window, or at a location that’s offscreen, and this will frequently work to resize and/or move the window. Don’t forget to close while resized/moved, so that Outlook remembers the size/position for next time.
THANK YOU Claude!!! I could get the main window to launch but could not get any other message window to show on the desktop. You are my hero!!!!
Solved my issue! 6 years later and this is still problem…
Fantastic. Thank you. Size did the trick.
This solved my Outlook problem, too. Thank you. :)
Thank you so much, this started happening to me today and was causing big problems. You are a life saver, I hope I can help you in some way some day.
You are a god – thank you!
thanks a lot…. work like charm.. :-)
Yah…thanks Claude. I’ve been having the same problem and tried all the suggestions…your solution was the answer. It had resized itself to a 0/0 box. Cheers
Excellent post. This had me baffled even trying to accurately describe the problem. This fixed it for me.
Thank you
Thanks a lot for the article. Don’t know why it happenend, don’t know how it got fixed, but it was really annoying and now it works :-)
Thanks a lot. I was facing this issue from past 3 week. I tried everything but no resolution. The issue was happening intermittently and mainly when I was changing the display of screen ( as i use 2 monitors). The only option i had was to do system restore. But thanks to you.
I’ve been tried to sole this problem for 12hours. Your comment about changing the display of screen helped me a lot!! Thanks!!
Thank you…don’t know why this happened but your instructions helped me fix it. Running Windows 10 and office pro 2007
Great tip! Thanks!
Worked for me, too – thank you!!!
It’s Worked for me, too
thank you very much!
I had a similar issue with Outlook 2013 on Windows 10 and this helped me to fix it. Thank you very much!
Thank you so much. Solved!
Considering you published this in 2012, incredible not been debugged by Microsoft.
Thank you again. M
This problem was faced by only one user logging to TS 2008 r2 using outlook 2010.The issue was resolved.
Thanks.
Great tip. Thank you!!!! If it helps, I had to use the Control Key and the arrow keys at the same time to bring my window back into view. Worked like a charm.
Thank you, this worked !!!!
Man, you are a fucking god. Thanks a lot, what an annoying bug!!
Awesome, this post solved the issue. Many thanks!