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CloseReview for Account Colors by edb_gene
Rated 4 out of 5 stars
Not a review, but if this isn't updated to TBird>3, you can find a similar function (and more) in 'identity-chooser'.
https://addons.mozilla.org/thunderbird/addon/identity-chooser/
Account Colors Version 4.1 is compatible with Thunderbird 5.* and 6.* and is available for download as an experimental version, pending formal review and release. To download Version 4.1, scroll to the bottom of this page and click 'Version Information', then click on the 'View all versions' link, then click on the 'Download Now' button for Version 4.1.
To create your own collections, you must have a Mozilla Add-ons account.