Up & Coming Extensions

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Extra Format Buttons

Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.

Rated 5 out of 5 stars (4)
2,350 users

Fire Shabelet

Fire Shabelet is a Japanese Voice Reader Software for Mozilla powered by VDS.

Rated 5 out of 5 stars (1)
1,246 users

Just Restart!

Restart application with Ctrl+Shift+Z.

Rated 5 out of 5 stars (3)
1,366 users

DontPhishMe

DontPhishMe is an Anti-Phishing addon for Mozilla Firefox which utilizes the pattern matching techniques to provide the Malaysian Internet user with information and notification to protect them against online banking phishing website.

Rated 5 out of 5 stars (1)
1,280 users

Secure Addressing

This add-on provides features to avoid sending emails to wrong addresses. Key features are a confirmation window of recipient's addresses upon sending, name and affiliation look up at mail composition and main windows, and safe auto completion.

Rated 5 out of 5 stars (10)
1,261 users

ownCloud for Filelink

Add ownCloud support to Thunderbird's filelink feature.

Rated 5 out of 5 stars (4)
1,347 users

Lightning Featured

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.

Rated 3 out of 5 stars (1,843)
1,309,883 users

GPO support For Firefox and Thunderbird No Restart

Firefox and Thunderbird extension to manage user preferences and user profile CA certificates using GPOs

Rated 4 out of 5 stars (4)
3,502 users

Menu Wizard

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (101)
16,001 users

elevenia

Instant access to your online shopping paradise. The more transaction you've made from our extension, the more point-cashback you'll get!

Rated 5 out of 5 stars (1)
2,098 users

TrayHotKey

为Fx5.0 及以上版本提供系统热键(老板键)功能

Rated 5 out of 5 stars (46)
3,717 users

Tag Sequence Arranger

Enable you to arrange the tag sequences in their listbox.

Rated 5 out of 5 stars (3)
1,384 users

Pan No Restart

Block ads and manage proxy.

Rated 5 out of 5 stars (51)
2,013 users

P7MON

Abilita la gestione alternativa degli allegati P7M

Not yet rated
1,049 users

Show Password On Input

Gives an option to show the master password on input

Rated 4 out of 5 stars (11)
1,102 users

Menu Filter No Restart

Keep your menus in check by filtering out items you never use.

Rated 4 out of 5 stars (31)
2,621 users

Address bulk copy (アドレス一括コピー)

Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。
それを実現するためのアドオンです。

Rated 5 out of 5 stars (2)
1,181 users

Color Text Compose Buttons

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.

Rated 5 out of 5 stars (15)
1,691 users

gContactSync

Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.

Rated 4 out of 5 stars (190)
48,553 users

CryptoData

Easily and quickly to encrypt / decrypt
For users: private messages via e-mail, blogs, social networks, forums, etc.
For webmasters: websites, images, photos, etc.
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (4)
1,092 users