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NestedQuote Remover
Single Domain
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.
Toggle Headers
Allows to switch between the normal header view and viewing all headers when viewing a message by using a keyboard shortcut (Ctrl+H).
Expertspam
Received
RemindIt
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.
Mail Sent Notifier
Allows to notify a HTTP-GET based webservice after successfully sent an email, e.g. for time registration systems.
Open With
Open With can open your web links in any browser installed on your computer.
*Open With is no longer maintained.*
URL Link
URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.
Next Unread Group (Mark All Read)
Adds a Group button, marks current newsgroup or folder as read and moves to the next unread message
Zivver for Thunderbird
This extension automatically detects Zivver messages and decrypts them on-the-fly using the Zivver API. Messages are decrypted only when actively displayed by the user and are never stored locally.
Conscious ClickUp Save
Conscious ClickUp Thunderbird add-on is a extension that gives support to send/archive mails from Thunderbird to ClickUp project management platform (https://clickup.com/)
For more info: https://github.com/Ruvin/Conscious-ClickUp-Thunderbird-Plugin
Message Mover
This add-on lets you move messages from a specific folder (and sub-folders) to a new folder.
RainbowNote
Notes with rainbow colors.
7 notepads are utilized as several memos if needed.
Or, these 7 notepads are used by days of the week.
February 28th 2021.
Sungho Hwang.
I love God.
EagleCloud Extension
Works along with EagleCloud Information Security product to secure sensitive information based on company policy.
Simple Startup Minimizer
This extension will minimize Thunderbird on startup, it is very simple and I didn't put much work into it but it should work on all platforms. Please let me know if you want more features added into it.
Smileyfixer
AutoBucket
This is an extension function that classifies emails into multiple buckets using AI(the Bayesian filter) and tags them.
Night and Day Dynamic
A theme that switches between sun and moon based on time of day.
This is the canonical example dynamic theme published by Mozilla: https://github.com/mdn/webextensions-examples/tree/master/dynamic-theme
ProtonMail Encryption Status
When using ProtonMail Bridge to integrate Mozilla Thunderbird withProtonMail, it's not easy to tell which emails were end-to-end (E2E) encrypted. This add-on puts an icon in the toolbar above every message to show you its encryption status.
To create your own collections, you must have a Mozilla Add-ons account.
