Mozilla Thunderbird
Last updated: September 15, 2026
Direct download from the publisher’s own server — no repacks, no bundled installers. By Mozilla. Report a broken link
Mozilla Thunderbird — Thunderbird is a free, open-source email client with calendar, contacts, chat and powerful filtering in one app.
Thunderbird is a free, full-featured email client from the makers of Firefox. It handles multiple accounts, calendars, tasks, contacts, newsgroups and RSS feeds, with strong junk filtering and OpenPGP encryption built in.
Key features:
- Unified inbox for all your mail accounts (IMAP/POP3/Exchange via add-on)
- Built-in calendar, tasks and contacts
- End-to-end encryption with OpenPGP
- Adaptive junk mail filtering
- Tabbed email, quick filter bar and powerful search
- Extensible with themes and add-ons