Thunderbird is a free, open-source, cross-platform application for managing email and news feeds. It is a local (rather than a web-based) email application that is powerful yet easy-to-use. Thunderbird is developed, tested, translated and supported by the folks at Mozilla Corporation and by a group of dedicated volunteers. Thunderbird gives you control and ownership over your email. There are lots of add-ons available for Thunderbird that enable you to extend and customize your email experience.
Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts.
- Tabbed email
- An Archive feature similar to the one in GMail
- Lightning fast search
- Smart folders
What"s fixed in v45.1.1:
- When entering members into a mailing list, the enter key dismissed the panel instead of just moving onto the next line
- Email without HTML elements was sent as HTML, despite "Delivery Format: Auto-detect" option
- Options applied to a template were lost when the template was used.
- Contacts could not be deleted when they were found through a search
- Views from global searches did not respect "mail.threadpane.use_correspondents"
Download: Thunderbird 45.1.1 for Windows (EN/US) | 33.3 MB (Freeware)
Download: Thunderbird 45.1.1 for Linux (EN/US) | 42.1 MB
Download: Thunderbird 45.1.1 for Mac OS (EN/US) | 73.8 MB
Download: Thunderbird 45.1.1 in other languages
View: Thunderbird Website | Release Notes