Lovebird for Thunderbird organizes mail around people
If you are particularly fond of a person that you communicate with via email, or have email contacts that send you lots of important messages, you only have one option to highlight those messages in the Thunderbird email client. You can set up filters to move those emails into a special folder for instance, so that they are separated and easily distinguishable from other emails.
Lovebird is a new extension for the Thunderbird email client that adds a second option to it. It basically provides you with the means to add email addresses to a list that is then displayed to you prominently in the email client.
It offers virtual access to the selected email addresses then, which is unlike filters, which often move mails to another physical location in the program.
Here is how it works. Once you have installed the extension in Thunderbird and restarted the application, you will notice two additions to the program. Each email that you open displays a heart symbol now next to the from address. A click adds the email address to the Lovebird database of important email contacts, another removes it again.
You can access the database with a click on Tools > Lovebird at any time. It opens in its own tab in the browser so that you can keep it open while you are working as usual in the software.
Lovebird displays all email addresses from that recipient automatically in its interface, regardless of their location in Thunderbird.
All emails can be read here right away, provided that they are plain text emails. HTML emails are not displayed, and the only option to display them is to right-click the message and select the view conversation in new tab option.
The extension displays filtering options at the top to sort emails by age, read status, reply or alphabet. It is for instance possible to display the oldest emails on top first, or the emails that you have not answered yet.
Lovebird can be a useful extension for Thunderbird users who do not want to use the built-in filtering system or prefer a faster option at filtering out emails. The main benefit is that you can organize mail with just a few clicks to keep an overview of important mail. The limitation to plain text messages is certainly an issue for some users though that may prevent them from using the extension at all.(via)