Benvingut a complements de Thunderbird.
Add extra features and styles to make Thunderbird your own.
TancaComentari del DOM Inspector per Brett Zamir
Rated 5 out of 5 stars
You can get the one for Firefox at https://addons.mozilla.org/en-US/firefox/addon/6622
(Giving a rating of 5 to balance out the comments about it not working in FF since it is for Thunderbird, but it is confusing)
Per crear les vostres pròpies col·leccions, heu de tenir un compte al Mozilla Add-ons.