Recently Updated Extensions
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xSidebar for Thunderbird Requires Restart
Firefox sidebars for Thunderbird.
Filter Uploader for Adblock Plus (unofficial) Requires Restart
DOES NOT BLOCK ADS! Don't install this add-on if you don't know what 'uploading' means!
This add-on Uploads the filters from your Adblock Plus installation to a FTP, HTTP, HTTPS server...
Don't Forget CC Requires Restart
添付ファイルを送信する際、指定されたアドレスがCCに含まれているかを検査します
Last Message Requires Restart
Navigate the folder to the last message in the moment the folder is opened.
PLUGIN NO LONGER BEING MAINTAINED Requires Restart
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Execute JS Requires Restart
Execute JS is a enhanced JavaScript-Console, where you can comfortably enter and execute arbitrary JavaScript-Code and modify functions...
IMEStatus Requires Restart
Show IME status by input/textarea/textbox background color.
Personasizer
Personasizer allows you to expose more of your persona's header image. Useful for personas that have text or an important part of their content cut off by the browser's navigation elements.
BorderColors Requires Restart
Color-codes compose windows depending the active e-mail identity, to avoid sending messages from the wrong account.
notto Requires Restart
Do not send mail to the addresses found into notTo field.
EMail Address Crawler Requires Restart
Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.
SendVia Requires Restart
Sometimes you need to select a specific SMTP server for sending the current message? Then SendVia is for you.
SendVia provides the `Send' button of message composition windows with a drop-down menu from which you can select or create the SMTP server...
Flat Folder Tree Requires Restart
Selectively breakout or promote sub-folders under an intermediate folder in the folder tree. Use with IMAP servers where some folders remain collapsed under special namespace like [Gmail] or the INBOX itself.
MailClassifier Requires Restart
The mailclassifier extension helps you to move the email in the right folder, it uses multi-level bayesian filtering...
Indian Language Transliterator Requires Restart
Indian Language Transliterator (developed at IIIT Hyderabad, India) is a Mozilla Thunderbird Add-on, developed to enable Thunderbird users to compose and send messages in 10 Regional Indian Languages, using their regular QWERTY keyboard!!!
External Email Alert Requires Restart
Alerts user to confirm that it is ok to send an external email.
parolu Requires Restart
Parolu enables Firefox to do speech synthesis of web pages written in Esperanto, useful for the blind (mainmenu.parolu) and for language learners (contextmenu.parolu). You'll need to install MBROLA on your machine first. https://lingvo.org/parolu
THUNDER!Box Requires Restart
Thunder!Box allows transferring contacts from your Thunderbird-Addressbook to the phonebook of a connected AVM FRITZ!Box FON router and back. You may also use your addressbook to initiate calls.
eMarks Requires Restart
Email Bookmarks are here ! ... eMark your important emails.
Do you have an email that will need to revisit/attend later on ? Would you like to keep it handy and get it with a simple click ? Bookmark your important emails with the eMarks addon.
To create your own collections, you must have a Mozilla Add-ons account.