Add-ons
Recently Updated Extensions
Sort by:
CleanMail
Nettoyage de boîte mail : statistiques par expéditeur, suppression en masse, désabonnement des newsletters et règles de nettoyage automatiques.
One-Click Mail Copier
This add-on allows you to copy various email details—such as the subject, date and time sent, and body (plain text)—to the clipboard all at once with a single click.
OmniSearch for Thunderbird
Fast, typo-tolerant email search with its own index. It finds mail Thunderbird's
built-in search misses, ranks the best matches first, and keeps itself up to date
as your mail changes. No internet access — everything stays on your computer.
Starred Sidebar by KoaSOFT
Adds a toolbar button that opens a panel listing every starred (flagged) email from all your accounts and folders in one place. Click any message to open it, or click its star to unstar—so nothing important slips away. Fast, private, all local.
NC Connector for Thunderbird
NC Connector brings Nextcloud Talk meetings, secure file shares, intelligent attachment automation, and centrally managed email signatures directly into Thunderbird.
Odoo Email Connector
Links Thunderbird emails to Odoo objects. A status bar shows if the email is known in Odoo with links to the record. Supports syncing message ids from Odoo, batch-verify, and predecessor lookup. Emails not found can be imported. Requires Odoo 19+.
*cloud - FileLink for Nextcloud OpenCloud ownCloud
Featured
Upload large attachments to your Cloud and send the link by email
Quick React
Reply to an email with a quick reaction.Add emoji reactions to your emails in one click.
Réagissez à vos e-mails en un clic avec des emojis.
Linux Entra Bridge
Entra ID SSO for Thunderbird on Linux. A native messaging host bridges to the local microsoft-identity-broker, reusing the device SSO session for Microsoft 365 / Exchange (Conditional Access outside Edge). Companion host required.
Birthday Calendar
Adds calendars containing the birthdays from your address books.
Alkateb
Easily write emails mixing Right-to-Left languages (like Arabic, Persian, Hebrew) with Left-to-Right languages (like English). Automatically formats your text as you type.
uBird
Finally, an efficient blocker, now for Thunderbird! Easy on CPU and memory.
FileLink for Gokapi
Utilisez votre instance Gokapi comme fournisseur FileLink pour les pièces jointes de Thunderbird.
PostScriptum
Files your sent message and the replied-to or forwarded message right after sending — across accounts and servers, into folders of your choice, with tags. Everything that belongs together in one place.
Mail Auth Checker
Displays SPF/DKIM/DMARC authentication results as a banner when viewing emails. Shows DKIM alignment and domain registration date to help understand what authentication results actually mean.
Snooze Ninja
Snooze emails like Gmail — but private and on your terms. Pick a wake time, the message moves to a Snoozed folder, and Thunderbird drops it back into your inbox when you need it. Your mail never leaves your machine. No telemetry, no cloud middleman.
Folder Filter Scheduler
Run message-filter rules automatically on any folder, not just the Inbox. Match by sender, subject, reply-to and more, then move, copy, delete, or mark messages on a schedule across multiple accounts. A modern successor to Auto Filter Timer.
JayBeeMailManager
Organize Thunderbird mail with flexible rules, previews, schedules, logs and undoable automation.
Close to Tray (for Windows)
X moves Thunderbird to the tray, _ minimizes it. Just like Discord.
CollectAddresses
Collect all sender/recipient/... addresses and store in an addressbook
To create your own collections, you must have a Mozilla Add-ons account.
