Up & Coming Extensions
SMTP Control Requires Restart
SMTP Control is a Thunderbird Add-ons offering dynamic selection of outbond SMTP server while sending a message.
By default thunderbird offer the ability to define a list of SMTP servers. With one global default server for all email accounts or one ...
Auto Address Cleaner Requires Restart
Removes comment, display name automatically from addresses before sending mail.
Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.
SmtpSelect Requires Restart
A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.
P7MON Requires Restart
Abilita la gestione alternativa degli allegati P7M
Ruler Bar Requires Restart
This appends a ruler to the mail composition window.
Secure Addressing Requires Restart
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.
ThunderPEC Requires Restart
ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) e delle comunicazioni PCT e FatturaPA in Thunderbird.
Close Proxy Authentication Requires Restart
Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.
Dictionary Switcher Requires Restart
Toggles dictionaries automatically or manually and displays the currently selected one
Display Quota Requires Restart
This extension will display the current status of your IMAP quota in thunderbird's statusbar and will warn you when you reach a configurable limit...
Keyword Highlight Requires Restart
Keywordhighlight changes color/size/weight of your favorite keywords...
Configures B-Trust security devices, imports B-Trust certification chain.
SmartTemplate Requires Restart
This Add-on provides the smart and simple templates and abilities to customize the quote header flexibly.
Templates can be inserted automatically at the new/repling/forwarding message. A different template can be used respectively per account.
XNote Requires Restart
Persistent sticky notes for Thunderbird associated to mails...
ViewAbout Requires Restart
Enables access to various about: dialogs from the View menu.
Check and Send Requires Restart
Check the message contents and addresses before you send the message...
Greek Translator Requires Restart
Translates English to Greek and vice versa.
French Dictionary for Spelling Requires Restart
Supports also the Nighty browser! This is a French Spelling dictionary, for finding spelling mistakes.
Select a text in French appearing on any web page and get a spelling check for it immediately!