Add-ons
Message Composition
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Thunderbird-CloudLink
Inserting file link to mail with optional password and expiration date
Reply As Original Recipient
Requires Restart
Reply with the From: field set to the To: field from the original email.
To must occur only once
This add-on changes all but the first "to" to "cc" if there are multiple "to" when replying to an email.
TuLPe
Traffic light protocol extension for Thunderbird, messages are customizable in the option page.
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.
ThunderFWD
EnForward
Save your email into Evernote by forwarding it to Evernote email address.
Before you use it, you need to specify your Evernote email address (see the screenshot).
This function can be invoked by "Forward to Evernote" in the context menu.
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.
Insert Link from Local File
Requires Restart
Inserts links from local files via drag and drop on the composition window.
Transfer Immunity
Transfer Immunity is a fast and secure add-on and SaaS service for sharing and transferring files. This high-fidelity, SaaS-based platform allows users to send large files to different destinations as attachments with emails.
regimail
AddOn for sending regimail with Thunderbird on Windows, MacOS and Linux.
*IMPORTANT:*
In order to use this AddOn, you need to install the regify client on your system and configure it with a valid regify account.
SMTP Switch Reborn
Arcus
Transliterator
As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.
Reply to Multiple Messages
Requires Restart
Add menu commands for replying to multiple messages at the same time.
Webbuttons - Skype Web
Adds a button in the toolbar for Skype Web. Icon source: https://www.flaticon.com/free-icon/skype_16167326
Webbuttons - Google Messages Web
Adds a button in the toolbar for Google Messages Web. Icon source: https://www.flaticon.com/free-icon/comment_9449200
Custom Sender Address and Reply
Requires Restart
Select sender mail address based on the recipient and reply with the same address
TidySubjectTo create your own collections, you must have a Mozilla Add-ons account.
