Rated 4 out of 5 stars

This extension is really awesome. I use it with Firefox 21 and Thunderbird 17.0.6. I did not encounter any problems up to now.

Two things could be better:

1. The default keyring name for Thunderbird is set to “Unknown” (while the Firefox one is set to “Firefox”).

2. I really miss a migration feature. I have a huge amount of credentials stored in the Firefox wallet and have to copy them manually into a file and then visit each of the sites to store the credentials into the Gnome keyring. That's annoying.

This review is for a previous version of the add-on (0.1.1-signed.1-signed).