Add-ons
Tags
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Tag Toolbar / Tag Popup
quickFilters
Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.
By popular demand, supports SORTING filters alphabetically.
GMail Labels
Shows GMail labels in each message's headers panel. When using Thunderbird with a Gmail account, it is not possible to guess which Gmail labels a message was applied (and in which folders it can be found). This extension provides this information
Tagger
Tagging messages by autocompletion
Quickly tag selected messages from a large list of existing tags using autocompletion, or create and add new tags, or clear them all.
Optionally tag incoming reply with tags of messages replied to.
SubSwitch
Simplify email categorization - it will be easier for you and others to manage mail. Define the set of prefixes for all emails you send or let SubSwitch to autodiscover it. While writing insert prefix to the title - choose one from your set.
Email Assistant
This Extension provides a framework for AI-powered email analysis. It processes incoming emails, sends them to a language model of your choice, and applies tags. This allows for sophisticated email classification and sorting.
PrioMailbox
PrioMailbox helps you prioritize your Thunderbird inbox by automatically tagging and highlighting important emails. Trainable tags organize your inbox efficiently, saving time and reducing distractions, with a simple, user-friendly interface.
TagOnCompose
This add-on allows you to specify tags when composing a message, which are then assigned to the message saved in the Sent folder.
AutoBucket
This is an extension function that classifies emails into multiple buckets using AI(the Bayesian filter) and tags them.
Webpage Print from Context Menu
TidySubject
ThunderSearch
AI Tag Manager
AI-powered automatic management of Thunderbird tags - Merge similar tags, intelligent cleanup and more
PhishNet
ThunderCalc
A simple calculator for Thunderbird/Sea Monkey/Firefox, available in a pop-up window or a separate tab.
Tag Sequence Arranger
Requires Restart
Enable you to arrange the tag sequences in their listbox.
Quick Steps
Thunderbird add-on to create one-click Quick Steps that perform multiple email actions in sequence, such as moving, copying, deleting, and archiving messages.
External Mail Guard
External Mail Guard marks external or unverified emails in Thunderbird with the label “external” and displays a warning message when they are opened.
Regex Message Tagger
This extension provides a means to tag messages based on a regular expression (regex) match of their subject lines. All messages that have the same regex match will get the same tag of the form SNx, which x is one or more digits.
To create your own collections, you must have a Mozilla Add-ons account.
