Most Popular Extensions
thundertoe Requires Restart
quote forwarded message just as replying
Scroll Menus On Drag Requires Restart
Scrolls menus when dragging, fixing bugs 194319, 240709, and 349932. Scrolls all autorepeatbuttons and prevents bookmarks menu hiding on all menuseparators.
MozLab Requires Restart
Remote shell and test-driven development tool for Mozilla developers
Mukparasi Korean-English Dictionary File Requires Restart
A Korean-English dictionary file for Mukparasi.
P18X Protocol Requires Restart
Send SMS direct to SMSC by the standalone mobile broadband USB-based modems of the brand ZTE with P18X Web UI.
ClassicFox Requires Restart
ClassicFox fixes problems with the appearance of the default theme in Windows Classic.
Thunderbird Are Go Requires Restart
This plays audio to boost emotion when Mozilla Thunderbird start up.
Mozilla Thunderbird Are Go!
DOM Inspector Requires Restart
Inspect the DOM of HTML, XUL, and XML pages, including the mail...
Unmangle Outlook Safelinks Requires Restart
Users of Office 365 Advanced Threat Protection wil change
all url's in emails to redirect them to an Microsoft filter before opening.
This plugin wil change the url back to the original value.
Enigma-code Requires Restart
Proste i szybkie szyfrowanie korespondencji e-mail, jak i dowolnego tekstu. Algorytm szyfrowania oparty na sposobie szyfrowania maszyny Enigma.
Search in all your search engines at the same time
Dissociate Occurrence Requires Restart
This add-on provides an extra menu item, labeled 'Dissociate Occurrence', to events' context menu, which allows an occurrence of a recurring event to be dissociated from the rest of the recurring series.
ComposeRTF Requires Restart
Compose messages Right-to-Left or Left-to-Right. Unlike other addons which change the direction of typing of the whole message, this addon allows you to control the direction of an individual paragraph.
MDN Extended Requires Restart
Allows the recipient of a message to send a return receipt (MDN: Message Disposition Notification) on message deletion. This addon is usefull for better experience with Notification Viewer addon.
Mukparasi Requires Restart
A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.
Innovativa Group Requires Restart
Assists to setup a chat account for Innovativa Group
Stego Block Requires Restart
Embeds a small secondary, encrypted message in an email, known as a Stego Block.
TB Properties Requires Restart
Wanna know more about a link or image you see in Thunderbird? Do you really really really wish there was a properties box with the info about objects? Well..
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.