Hello Linux Geeksters. As you may know, Thunderbird is a good and popular E-mail client, available for Linux, Windows and Mac OS X, developed by the Mozilla Team. Thunderbird 24.0 Beta 1 has been officially released a few days ago, bringing a few fixes and improvements. For a full list of fixes, see the official changelog.

Because it is not available via any repository yet, to install the latest Thunderbird version available, we have to download the sources from the official site and them via the installation script. Follow the instructions exactly for your system’s architecture, and everything will be ok:
How to install Mozilla Thunderbird 24.0 Beta 1 on 32 bit Linux systems:
$ wget -c ftp://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/24.0b1/linux-i686/en-US/thunderbird-24.0b1.tar.bz2
$ tar -xjvf thunderbird-24.0b1.tar.bz2
$ cd thunderbird
$ sudo chmod +x run-mozilla.sh
$ ./run-mozilla.sh
How to install Mozilla Thunderbird 24.0 Beta 1 on 64 bit Linux systems:
$ wget -c ftp://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/24.0b1/linux-x86_64/en-US/thunderbird-24.0b1.tar.bz2
$ tar -xjvf thunderbird-24.0b1.tar.bz2
$ cd thunderbird
$ sudo chmod +x run-mozilla.sh
$ ./run-mozilla.sh
These intructions are generical, so they work for all the popular Linux systems, including: Ubuntu, Linux Mint, Elementary OS, Debian, Magaia, Fedora, OpenSUSE, Arch Linux, Knoppix, Deepin and many others