Thunderbird add-ons that I've either used for years, or tested and highly suggest.
성가신 배너나 짜증나는 광고가 있습니까? 인터넷 상의 개인 정보 누출을 걱정하고 있습니까? 인터넷 통제권을 되찾고, 웹 문서의 보는 방식을 변경하기 위해 Adblock Plus를 설치하십시오.
간략한 소개 영상 : http://www.youtube.com/watch?v=oNvb2SjVjjI
Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.
Adds some tools to import and export folders and messages
This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.
Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.
Adds the ability to create and edit entries in the password manager.
Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.
Allows URI texts written in webpages to be loaded by double clicks.
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.