Add-ons
Message Composition
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Webbuttons - Google Messages Web
Adds a button in the toolbar for Google Messages Web. Icon source: https://www.flaticon.com/free-icon/comment_9449200
OpenAI Proofreader
This extension uses OpenAI gpt-4o-mini to proofread emails when the user clicks the extension icon.
Usage requires an OpenAI API key. OpenAI does not offer a free usage tier. Proofreading a 4-5 paragraph email costs a fraction of a cent.
Gemini Proofreader
This extension uses Gemini Flash 2.0 to proofread emails when the user clicks the extension icon.
Usage requires a Gemini API key. There is a free usage tier that should be more than adequate for almost every user.
Reply with Attachments
Automatically include attachments in email replies.
Skips SMIME certificates to avoid unnecessary attachments
Fügt automatisch Anhänge aus der ursprünglichen E-Mail hinzu.
Überspringt SMIME-Zertifikate, um unnötige Anhänge zu vermeiden.
ThunderAI Sparks
ThunderAI Sparks is an add-on designed to add advanced features to ThunderAI.
addy.io / AnonAddy for Thunderbird
Adds a button to the message composition window which updates recipient addresses to route the outbound message through addy.io or a self-hosted AnonAddy server, so your real, private email address isn't exposed to recipients.
Daily Reports
This plugin lets you store different profiles with CC, To, Subject and Signature values. Perfect if you need to send emails with similar details often.
AutoRemove
AutoZoom
Webbuttons - Skype Web
Adds a button in the toolbar for Skype Web. Icon source: https://www.flaticon.com/free-icon/skype_16167326
AutoReplace
This AddOn offers a function of autocorrection / auto text replacement. You can save a shortcut and a replacement and it will replaced automaticly if you type your new eMail text.
ChatGPT Addon
Integrates ChatGPT with Thunderbird for quick and easy access to its conversational AI capabilities.
AI Mail Support
Add-on designed to enhance email management for both personal and professional use, integrating a set of adanced AI (LLM) features to optimize the email management experience.
Hawk (Like ChatGPT in your emails)
Hawk for Thunderbird is an AI-powered plugin designed to generate clear and personalized emails, translate content, fix grammar errors, and streamline your email communication workflow.
Customoji
Adds easy custom emojis to Thunderbird.
NOTE: you need to add the emojis yourself in the extension settings
BestReply
BestReply is an add-on that aims to improve users’ experience by providing quick services to the user such as summarization of emails, response generations, as well as a smart chat with our AI model based on the email they are reading.
Antidote connector for Thunderbird
Integrate Antidote with Thunderbird to proofread your emails, check your spelling and grammar, and consult the dictionaries and language guides. Get alerted to abrasive tone and missing attachments before sending a message.
Identity Selector
Always select the right identity with Identity Selector!
Reply All Button
Add a "Reply All" button which never behaves like "Reply List". Intended to replace the Smart Reply button to avoid accidentally performing Reply List behavior.
SCMenu
Supplementary compose menus to reply to a message by including its original attachments and to create a new email to the recipients of an existing message.
To create your own collections, you must have a Mozilla Add-ons account.
