Thunderbird 16 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?
Now added box.com to the list of online storage services that are available for use with Thunderbird Filelink.
Silent, background updates. Thunderbird will now download and apply updates in the background.
Various fixes and performance improvements
Use-after-free in the IME State Manager
Heap memory corruption issues found using Address Sanitizer
Use-after-free, buffer overflow, and out of bounds read issues found using Address
Spoofing and script injection through location.hash
Chrome Object Wrapper (COW) does not disallow acces to privileged functions or properties
top object and location property accessible by plugins
GetProperty function can bypass security checks
Crash with invalid cast when using instanceof operator
DOS and crash with full screen and history navigation
Some DOMWindowUtils methods bypass security checks
Continued access to initial origin after setting document.domain
MFSA 2012-74 Miscellaneous memory safety hazards (rv:16.0/ rv:10.0.8)