Rated 4 out of 5 stars

This addon was perfect for what I needed it for. I used the /tmp/testUnread file to put a text notification on a conky monitor. Unfortunately it stopped working when my Debian ungraded icedove to 24.2.0. Otherwise it would be 5 stars as it does exactly as expected. Please update this addon! :)

This review is for a previous version of the add-on (0.1). 

Rated 4 out of 5 stars

I've made a simple app for OSX which displays the Thunderbird icon in the menu bar and the number of unread e-mails next to it. It uses this extension and works quite well. There is also a version with white text for dark menu bars. The only thing is that the extension takes some time (1-2 secs) before it detects the number has changed and writes it into the file.

Check it out here:
http://bitbucket.org/ondrej_mocny/thunderbirdunreadcount

This review is for a previous version of the add-on (0.1). 

Rated 3 out of 5 stars

It creates a /tmp/testUnread file, it only has the number of unread messages in it, for this to me truly useful it need to include metadata on the messages, it needs options like storing the testUnread file under a differnet name/location. once the addon supports storing the mail metadata in the file there should be a format options like JSON, XML, sqlite, etc.

This review is for a previous version of the add-on (0.1). 

Rated 1 out of 5 stars

It does not work. I check the file /tmp/testUnread and saw that it had updated to the number of unread messages I had, but nothing ever appeared in the menu bar. I waited for 1h for something before removing the add-on.

This review is for a previous version of the add-on (0.1). 

Have you tried the application from https://sourceforge.net/projects/unreadtb/? The add-on is expected to work together with this application to display the unread count on the menubar.