Thunderbird 15 is now available for download. Thunderbird is a free, open source, cross-platform e-mail and developed by the Mozilla Foundation.
What’s new in this version of thunderbird?
Multi-Channel Chat: You now can enjoy real time conversation with your contacts, right from your favorite messaging application.
Do Not Track: This option has been implemented as an addition to Search the Web.
Ubuntu One is now supported in Filelink – the option to upload large attachments to online storage services.
New User Interface: Thunderbird is replicating the new look and feel of Mozilla Firefox in an effort to provide a similar user experience across all Mozilla software desktop or mobile and all platforms.
Various fixes and performance improvements
Web console eval capable of executing chrome-privileged code
Location object security checks bypassed by chrome code
DOMParser loads linked resources in extensions when parsing text/html
Installer will launch incorrect executable following new installation
Out-of-bounds read in format-number in XSLT
Graphite 2 memory corruption
SVG buffer overflow and use-after-free issues
WebGL use-after-free and memory corruption
Memory corruption with bitmap format images with negative height
Location object can be shadowed using Object.defineProperty
Use-after-free issues found using Address Sanitizer
Miscellaneous memory safety hazards (rv:15.0/ rv:10.0.7)