추천 확장 기능
Mail Merge 다시 시작 필요 추천
Mass Mail and Personal Mail
OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.
Mail Redirect 다시 시작 필요 추천
Allow to redirect (a.k.a. "remail") mail messages to other recipients.
CompactHeader 다시 시작 필요 추천
Add symbol in header plane to switch between compact and expanded view. Options to switch between one or two lines compact view, which buttons should be displayed in header pane. New beta version available from http://compactheader.mozdev.org/