Hello Linux Geeksters. As you may know, Firefox 37 has been released recently released, coming with a new user rating system that allows the users to easily send feedback to Mozilla, it now uses HTTPS for Bing searches, got support for CSS display:contents, disabled the insecure Transport Layer Security (TLS) versions for security reasons, includes better support for HTTP/2, extends SSL error reporting, and supports e-mail name constraints in certificates, among others.

In this article I will show you how to install Firefox 37 on Ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr, Ubuntu 12.04 Precise Pangolin, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Linux Mint 13 Maya, Elementary OS 0.3 Freya, Elementary OS 0.2 Luna, Pinguy OS 14.04, Peppermint Five, Deepin 2014, LXLE 14.04, Linux Lite 2, Debian Jessie, Debian Wheezy, Fedora 21, Fedora 20, OpenSUSE 13.1, OpenSUSE 12.3, Mageia 4, OpenMandriva 2014, ROSA Desktop, Arch Linux and Manjaro systems.
Because Firefox 37 is not available via any repository yet, we have to download Firefox 37 from the Mozilla site, extract the archive, move to /opt and alias the launcher.
Follow the instructions for your system’s architecture exactly, in order to get a successful installation.
How to install Firefox 37 on 32 bit Linux systems:
$ wget ftp.mozilla.org/pub/mozilla.org/firefox/releases/37.0/linux-i686/en-US/firefox-37.0.tar.bz2
$ tar -xjvf firefox-37.0.tar.bz2
$ sudo rm -rf /opt/firefox*
$ sudo mv firefox /opt/firefox
$ sudo ln -sf /opt/firefox/firefox /usr/bin/firefox
To start Firefox 37, just open a terminal, type firefox and hit enter.
How to install Firefox 37 on 64 bit Linux systems:
$ wget ftp.mozilla.org/pub/mozilla.org/firefox/releases/37.0/linux-x86_64/en-US/firefox-37.0.tar.bz2
$ tar -xjvf firefox-37.0.tar.bz2
$ sudo rm -rf /opt/firefox*
$ sudo mv firefox /opt/firefox
$ sudo ln -sf /opt/firefox/firefox /usr/bin/firefox
To start Firefox 37, just open a terminal, type firefox and hit enter.
Note: This will replace the version of Firefox you have already on your system with Firefox 37.