Hello Linux Geeksters. As you may know, Firefox 33 stable has been recently released, coming with support for OpenH264, via the H.264 library developed by Cisco, optimizations for session respore, JavaScript and HTML5 enhancements, search suggestions on either the Firefox Start (about:home) and new tab (about:newtab) pages, a new CSP (Content Security Policy) backend, support for connecting to HTTP proxy over HTTPS and new features for developers. For more information, see the release notes.
And it has been already added to the default repositories of Ubuntu 14.04 Trusty Tahr, Ubuntu 12.04 Precise Pangolin, being available for both the two systems and their derivatives: Linux Mint 17 Qiana, Linux Mint 13 Maya, Pinguy OS 14.04, Elementary OS 0.3 Freya, Elementary OS 0.2 Luna, Deepin 2014, Peppermint Five, LXLE 14.04, Linux Lite 2.0 and others.
All you have to do in order to get Firefox 33 is to update the local repository index and install the firefox package. Like this:
$ sudo apt-get update
$ sudo apt-get install firefox