When you select to add email address to address book by clicking on the email address in the header, it auto adds the email address to the default 'Personal Address Book'. This addon extension offers you more choice, so that you can choose which address book to use. This may help you to avoid adding email addresses/contacts to the wrong address book, so that you can avoid the need to delete.

• https://freeshell.de/~kaosmos/morecols-en.html

You can also choose the address book where outgoing email addresses are auto added/collected. By default this is the 'Collected Addresses' address book. 'Tools' > 'Options' > 'Composition' > 'Addressing' tab Select: 'Automatically add outgoing email addresses to my: choose address book. or uncheck thar option if not required. click on OK

The Addon doesnot work with Thunderbird 2.0.0.16 linux / ubuntu platform kindly help , the "address auto complete " option is not displayed in tool bar

re: Thunderbird 2.0.0.16 You are running a very ancient version of Thunderbird. Have you considered updating so that it includes all the latest functionality and security updates? current version is 31.6.0

• https://www.mozilla.org/en-US/thunderbird/all.html

At the link: https://freeshell.de/~kaosmos/morecols-en.html

There are two downloads available. did you download the correct version for your current TB?

• For Thunderbird 2.0.0.16 download 0.5.9.2 version (TB 1.0 - 2.0)
• For Thunderbird 31.6.0 download 0.7.1 version (TB 3.0 or higher)

How to install: Tools > addons Click on Gear wheel icon and select : install addon from file locate the file and click on Open Restart thunderbird at prompt.

Also located info re ubuntu linux.: After download .xpi file, open Thunderbird. Open the Add-ons Manager ( Tools -> Add-ons ) Just drag the .xpi file from nautilus, and drop it in the Add-ons Manager, then it should start installing