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Lightning Reinício necessário Em destaque

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.

Avaliado com 3 de 5 estrelas (1 967)
6 816 663 utilizadores

ImportExportTools Reinício necessário

Adds some tools to import and export folders and messages

Avaliado com 4 de 5 estrelas (211)
474 882 utilizadores

Provider for Google Calendar Reinício necessário

Allows bidirectional access to Google Calendar

Avaliado com 4 de 5 estrelas (1 035)
308 197 utilizadores

Enigmail Em destaque

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Avaliado com 4 de 5 estrelas (228)
131 438 utilizadores

LookOut (fix version) Reinício necessário

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Support: Thunderbird and SeaMonkey

Avaliado com 4 de 5 estrelas (29)
101 045 utilizadores

Enviar mais tarde Reinício necessário

Funcionalidade do “Enviar mais tarde” para marcar a hora de envio

Avaliado com 5 de 5 estrelas (141)
72 589 utilizadores

Mail Redirect

Permitir redireccionar as mensagens de correio (aka "repostagem") para outros destinatários.

Avaliado com 4 de 5 estrelas (130)
37 201 utilizadores

Addressbooks Synchronizer Reinício necessário

Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers

Avaliado com 4 de 5 estrelas (59)
33 230 utilizadores

LookOut Reinício necessário

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).

Avaliado com 4 de 5 estrelas (156)
26 294 utilizadores

DOM Inspector Reinício necessário

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Avaliado com 5 de 5 estrelas (77)
25 576 utilizadores

Confirm-Address Reinício necessário

メールを送信する前にあて先確認ダイアログを表示するThunderbirdアドオンです。

Avaliado com 4 de 5 estrelas (53)
24 590 utilizadores

Display Mail User Agent Reinício necessário

Mostra o programa com o qual o e-mail seleccionado foi escrito

Avaliado com 4 de 5 estrelas (111)
23 907 utilizadores

ChatZilla Reinício necessário

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Avaliado com 4 de 5 estrelas (150)
23 900 utilizadores

QuickFolders (Tabbed Folders) Reinício necessário

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Avaliado com 5 de 5 estrelas (127)
21 671 utilizadores

SmartTemplate4 Reinício necessário

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Avaliado com 5 de 5 estrelas (54)
17 927 utilizadores

JavaScript Debugger Reinício necessário

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Avaliado com 4 de 5 estrelas (52)
14 608 utilizadores

MinimizeToTray revived Reinício necessário

Minimizes windows into the system tray.

Avaliado com 4 de 5 estrelas (395)
13 966 utilizadores

Theme Font & Size Changer for ThunderBird

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.

Avaliado com 3 de 5 estrelas (81)
13 775 utilizadores

quickFilters Reinício necessário

Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.

By popular demand, supports SORTING filters alphabetically.

Avaliado com 5 de 5 estrelas (37)
13 195 utilizadores

FireTray Reinício necessário

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Avaliado com 4 de 5 estrelas (279)
12 792 utilizadores