Extensions by Name
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Move Mail Shortcuts
Allows assigning keyboard shortcuts for moving mails to folders and jumping to the folders.
mozCleaner
Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.
Mozilla Labs - Jetpack Prototype Requires Restart
Jetpack Prototype is an experiment in making it easy to build Firefox add-ons using common web technologies.
MozLab Requires Restart
Remote shell and test-driven development tool for Mozilla developers
MR Tech - Gant Icon Pack Requires Restart
This icon pack is specifically designed to replace the menu icons supplied by MR Tech Local Install (should work with my MR Tech About:About 2.x & Toggle Preview Pane extensions too). As a request from Frackounet (French locale translator) I...
MR Tech Disable XPI Install Delay Requires Restart
Disables default delay when installing...
MR Tech Toolkit Requires Restart
(Formerly Local Install) The primary goal of this extension is to provide the tools needed to install and manage extensions and themes locally and tons of other features.
Note: With Toolkit 6.0 Auto Archiving is fully working in Firefox 2.0 and temp...
MRC Compose Requires Restart
Remplace la liste d'adresses par les champs standards (Pour, Copie à, Copie cachée à) avec l'autocomplétion.
Provides standards fields (TO, CC, BCC) with autocomplete to Thunderbird's compose pane.
For bug reports, please use support email.
msofficewebapp
Adds browser action icon to toolbar to open MS Office Cloud. See https://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/04/microsoft-office-button/
Mukparasi Requires Restart
A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.
Mukparasi Korean-English Dictionary File Requires Restart
A Korean-English dictionary file for Mukparasi.
Multi-LDAP Requires Restart
Permits to use several LDAP directories simultaneously for address autocompletion.
MultiLDAP2 Requires Restart
Based on TrustedBird/MiliMail work. Patched to work with lastest Thunderbird.
Permits to use several LDAP directories simultaneously for address autocompletion.
Multimonth view
Multimonth View allows users to display multiple months in a single calendar view,
Multiple Addon Deactivator Requires Restart
Multiple Addon Deactivator (M.A.D) is an addon that can (de)activate one, many or each addon at the same time
To create your own collections, you must have a Mozilla Add-ons account.