Hello Linux Geeksters. As you may know, Firefox 26 and Thunderbird 24.2 have been released a few days ago.
Firefox 26 comes with all the Java plugins disabled by default, and so the users will be asked to enable them only when needed, via a click-to-play option. It also comes with support for H.264, improved CSP implementation, support for CSS image orientation property, some fixes for the matching of JPEG images based on EXIF, decreased page load due to the removal of decoding non-visible images and a bunch of security fixes.
Thunderbird 24.2, comes with a few fixes and improvements only. Among others, the developers have fixes some JPEG-wise information leaks, fixes issues about certain long messages being unreadable and some security bugfixes.
Because Firefox 26 and Thunderbird 24.2 are available via the default repositories of Ubuntu 13.10 Saucy Salamander, Ubuntu 13.04 Raring Ringtail, Ubuntu 12.10 Quantal Quetzal, Ubuntu 12.04 Precise Pangolin and derivates: Linux Mint 16 Petra, Linux Mint 15 Olivia, Linux Mint 14 Nadia, Linux Mint 13 Maya, Pear OS 8, Pear OS 7 and Elementary OS 0.2 Luna, installing them is easy. All you have to do is update the local repository index and install the firefox and thunderbird packages. Like this:
$ sudo apt-get update
$ sudo apt-get install firefox thunderbird