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ThunderFWD
Next Unread Group (Mark All Read)
Adds a Group button, marks current newsgroup or folder as read and moves to the next unread message
EagleCloud Extension
Works along with EagleCloud Information Security product to secure sensitive information based on company policy.
Mark GMail Read
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.
White Screen
Use white screen test to detect dead pixels, stuck pixels, and other display defects.
✨ Awesome Emoji Picker ✨
Modern, nice emoji picker that you can use to find and select emojis. It will be copied to your clipboard or even directly inserted into the e-mail, when you click on it.
You will certainly like it.
Tomba : Email Finder
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.
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.
Lojban spell check dictionary
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
Dark Reader
Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.
Signature sync for Gmail
This extension allows you to automatically use your signature from Gmail accounts in Thunderbird. No longer need to maintain two separated signatures!
Notion - Quick Access
Quick Access to Notion in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Outlook Calendar - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Outlook Calendar.
Email Address Extractor
Sender-Recipient Exporter is a Thunderbird add-on that extracts sender email addresses, sender domains, and recipient email addresses from messages in the currently selected mail folder. The data is exported as a CSV file for easy analysis.
To create your own collections, you must have a Mozilla Add-ons account.
