Download Mozilla Thunderbird 31.4.0

The Mozilla Foundation has released version 31.4.0 of Thunderbird. Mozilla Thunderbird is an open source email and newsgroup client, with features such as support for several mail and news accounts, a spam filter, spell checker, and a customizable look and feel. In version 31.4.0 we don’t find any new features, but some bugs and security vulnerabilities have been fixed.

Fixed in version 31.4.0:

• The previous issues with jp mac builds have now been fixed, and Thunderbird will no longer need to be run in 32-bit mode.
• Installing extensions within Thunderbird no longer requires download and installing as a file.
• 2015-04 Cookie injection through Proxy Authenticate responses
• 2015-03 sendBeacon requests lack an Origin header
• 2015-01 Miscellaneous memory safety hazards (rv:35.0 / rv:31.4)

The following downloads are available:
Mozilla Thunderbird 31.4.0 for Windows (English)
Mozilla Thunderbird 31.4.0 for Linux (English)
Mozilla Thunderbird 31.4.0 for OS X (English)
Mozilla Thunderbird 31.4.0 for Windows (English)
Mozilla Thunderbird 31.4.0 for Linux (English)
Mozilla Thunderbird 31.4.0 for OS X (English)
Mozilla Thunderbird 31.4.0 for Windows (Frisian)
Mozilla Thunderbird 31.4.0 for Linux (Frisian)
Mozilla Thunderbird 31.4.0 for OS X (Frisian)