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Disable Add-on Compatibility Checks

Reinstates the extensions.checkCompatibility preference without respect to the current application version.

Rated 4 out of 5 stars (120)
191 users

Český slovník pro kontrolu pravopisu

Slovník pro kontrolu pravopisu pro aplikace Mozilla

Rated 4 out of 5 stars (36)
16,186 users

German Dictionary, extended for Austria

German dictionary (new Orthography) for spellchecking in Mozilla products, extended with Austrian words

Rated 5 out of 5 stars (22)
5,415 users

PrintingTools Requires Restart

Adds some options to print messages and addressbooks

Rated 4 out of 5 stars (43)
955 users

GNotifier

Add-on for Thunderbird that replaces the built-in notifications with OS native ones. It supports most Linux Desktop Environments as well as Windows 8.1/10.

Rated 5 out of 5 stars (48)
14 users

German Dictionary (Switzerland)

Dictionary with Swiss variants of German words for spellchecking in Mozilla products

Rated 5 out of 5 stars (3)
16,171 users

Copy Folder Requires Restart

The missing Thunderbird "copy folder" feature! Copy folders or entire POP/IMAP accounts recursively to any location while maintaining folder structure.

Rated 2 out of 5 stars (75)
222 users

Swedish Dictionary

Swedish spell-check dictionary.

Rated 5 out of 5 stars (22)
6,779 users

Danish Dictionary for the Spell Checker

Danish dictionary for Firefox, Thunderbird and other Mozilla products.

Rated 3 out of 5 stars (25)
4,226 users

Color Folders Requires Restart

Color your Folder Treeview Icons!

Rated 4 out of 5 stars (164)
349 users

关闭即最小化 Requires Restart

Use this to Minimize
点击关闭钮按等同于点击最小化按钮,使得firefox驻常任务栏--支持win10
适合理处因使用了大量的本脚和插件的时候firefox启动慢缓的问题
A remake of the MinimizeToTray-extension made to fit the Windows 10 taskbar. Instead of minimize the window to the tray it minimize it to the taskbar.

Rated 4 out of 5 stars (10)
1 user

Diccionario de Español/Chile

Diccionario corrector ortográfico de Español/Chile

Rated 5 out of 5 stars (4)
2,900 users

Master Password+ Requires Restart

Various enhancements for build-in "master password" (MP)
-Locks master security device on demand or after specified time
-Prompts for MP on browser startup
-Suppresses all or duplicate MP prompts
-Locks up entire application or individual windows

Rated 4 out of 5 stars (186)
255 users

English - Greek Spelling dictionary

English-Greek spell-checking dictionary for Firefox, Mozilla thunderbird and Seamonkey mail for easier spell checking in bilingual text.If you need better spelling results try the respective stand-alone...

Rated 4 out of 5 stars (74)
3,717 users

Google Calendar Tab Requires Restart

Adds the Google Calendar web interface as a new tab directly into Thunderbird. Creating and viewing events works just as it would in a browser like Firefox

Rated 4 out of 5 stars (104)
70 users

OutlookAlike BETA Requires Restart

Makes Thunderbird looking like Outlook.

Rated 4 out of 5 stars (37)
21 users

Toolbar Buttons

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.

Rated 4 out of 5 stars (372)
321 users

Google Search for Thunderbird Requires Restart

Adds Google Search to Thunderbird

Rated 4 out of 5 stars (39)
64 users

Dorando keyconfig Requires Restart

A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) work again!

Rated 5 out of 5 stars (66)
255 users

Arabic spell-checking dictionary

Arabic spell-checking dictionary for Firefox 3 and Thunderbird 3 from Ayaspell.

Rated 4 out of 5 stars (43)
696 users