Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
RemindIt No Restart
Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.
True "Send Later" functionality to schedule the time for sending an email.
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
This allows the user to select Private / Personal / Company-Confidential (or none) for an outgoing message.
AFP protocol enabler No Restart
Enable afp protocol (afp://)
Mail Merge Featured
Mass Mail and Personal Mail
Con esta extensión podrás hacer una copia de tus emails en el programa kmaleon.
Automatic Dictionary No Restart
Extension that remembers the language of the spellchecker used when composing and switches to it every time you write to that person.
Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!
Allows to convert large attachments to links automatically without 3rd party providers.
Easily and quickly to encrypt / decrypt
For users: private messages via e-mail, blogs, social networks, forums, etc.
For webmasters: websites, images, photos, etc.
Support: Firefox, Thunderbird and SeaMonkey
Category manager for CardDav contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.
Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.
ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) in Thunderbird.
This extension serves the purpose of providing instant access to the FOAAS web service. FOAAS (Fuck Off As A Service) provides a modern, RESTful, scalable solution to the common problem of telling people to fuck off.
Selects an identity based on the recipients list when sending an email
Inserts links from local files via drag and drop on the composition window.
SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.
Write your email in Markdown, then make it pretty.