アドオン
メール作成／編集
FileLink provider for Send
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).
CategoryManager
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Automatic Dictionary
Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.
AVIM
要再起動
Vietnamese-language input method editor (IME). Type diacritics directly into any Web page, Web app, or dialog box. Convenient, comprehensive, secure.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, hộp thoại.
Proton Mail Toolbar Button
Adds a Proton Mail button to the toolbar. The button simply opens a new tab with the https://mail.proton.me webpage.
Reply to Multiple Messages
要再起動
Add menu commands for replying to multiple messages at the same time.
SmartTemplate4
ReplyWithHeader
HTML Source Editor
Allows to edit the source of the currently composed message. A simple alternative to ThunderHTMLedit.
Toggle Word Wrap
要再起動
Toggle word wrapping and <PRE> element wrapping in the message composition and HTML display windows, respectively. Based on original version by Kaspar Brand.
Simple Mail Redirection
Custom Address Sidebar
Color Text Compose Buttons
要再起動
Adds Text Color Buttons in Compose Toolbar and More: Pixel FontSize, Strikethough, Sub & Superscript, Lower & UpperCase. Also provide Tools: Insert iframe, Launch MathType, Maths & Greek Symbols, Load Template Variables and Duplicate Compose Window.
Auto Resize Image
要再起動
Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).
Identity Chooser
Identity Chooser helps you to always use the correct identity when composing a new email.
CatchAll Bird
This extension improves the use of CatchAll-Addresses with Thunderbird.
It handles incoming messages addressed to all [email protected] for a fixed domain.
For each prefix the AddOn can create a new identity and folder.
CustomCSS
Allow the user to configure custom CSS that will be added to messages when edited
(new, reply and forward). The custom CSS will be added to a newly created <style>
element in the email's head.
Extra Format Buttons
要再起動
Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.
DL for Thunderbird
要再起動
Allows to convert large attachments to links automatically without 3rd party providers.
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あるいは 既存のアカウントへログイン
