XUL/Migemo Requires Restart

This provides dictionary-assisted search (Migemo search) and regular expression powered search for "find in this page" and other features.

xultray for gecko 1.9.1 Requires Restart

Show xul application (gecko 1.9.1 based) in system tray. supports Firefox 3.5, Thunderbird 3.0.

xultray for gecko 1.9.2 Requires Restart

Show xul application (gecko 1.9.2 based) in system tray. supports Firefox 3.6 / 3.7 , Thunderbird 3.1

Yandex Mail - Quick Access

Quick Access to Yandex.Mail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Yandex.Metrika for Thunderbird Requires Restart

Go to the reports of Yandex.Metrika

yangben dictionnary Requires Restart

spell check for Yangben Cameroun

Year view Requires Restart

Year view for calendar.

Year View Requires Restart

This is an example extension that adds a simple year view to Sunbird/Lightning.

Note that freebusy information is only provided if all calendars are cached. See long description for more info. Also, Calendar 1.0pre with bug 489590 fixed is required.

Yelp Search Toolbar Requires Restart

YELP SEARCH TOOLBAR, NOW IT MORE EASY TO REVIEW & TALK ABOUT WHAT'S GREAT - AND NOT SO GREAT - IN YOUR AREA

Yet Another Remove It Permanently Requires Restart

Remove elements and block content on Web pages.

YNote Requires Restart

Make some text notable on the each folder in folder's property dialog box.

YouTube RSS feed redesign

Adds YouTube thumbnails to RSS feed entries

YouTube Video Downloader

The Complete Guide to YouTube Video Downloader Converter Tool and How They Can Help You Easily Download and Convert Videos from YouTube.

ZenbuShiitake Requires Restart

Zendesk Widget Requires Restart

Provides a simple integration with Zendesk by displaying some information about the ticket when you open the notification mail for the ticket

This extension is not affiliated with Zendesk in any way. The Zendesk logo is (c) by Zendesk.

zFiler mail Requires Restart

Automatic conversion from 'plain' attachments to zFiler links, when message is being sent.

Zhong Wen Requires Restart

Mouse over a Chinese character to find out it's meaning. A popup will appear showing the 'Pinyin' pronunciation, the simplified character form, and the English translation. You can customize what parts to show on the preferences window.

Zindus Requires Restart

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Zivver for Thunderbird

This extension automatically detects Zivver messages and decrypts them on-the-fly using the Zivver API. Messages are decrypted only when actively displayed by the user and are never stored locally.

ZNotes Requires Restart

Save everything you like. Simple text notes and pages downloaded from the internet, rich multimedia. Store any files and contacts from your address book with notes.