How old is that EeePC? If that is one of the original versions, from 2007 - 2009, the Xandros operating system doesn't support anything newer than Firefox 2.0 ! I have a EeePC 900, and in 2009 I installed EasyPeasy OS [http://en.wikipedia.org/wiki/EasyPeasy] so that I could run Firefox 3.6. Unfortunately, EasyPeasy was discontinued in 2012 altogether, but work on it had quit in like 2010 when Ubuntu started adding files needed for Netbooks like the EeePC. Overall, ASUS used a weird OS to begin with on the first EeePC 700 model - Xandros, which was already a couple of years behind the Linux-curve as far as security updates and file version levels. And then ASUS didn't provide funding to the team that created Xandros to make it more up-to-date. Then there is the issue of Microsoft seeing the Netbook market slip thru their fingers, and MS putting pressure on ASUS to use a "Lite" version of WinXP, which did become an option after the 900 versions. But that's another story ... Bottom line is that you need a different, newer Operating System for that device to be able to use a newer version of Firefox. Best thing to do is to head over to the Ubuntu support fora and ask about an appropriate Linux distro for your EeePC. http://ubuntuforums.org/ I don't use my EeePC for the purpose I originally got it for ''(the company I worked in for 2008 went bust in 2010 - I was an outside service rep and did on-site job reporting with the EeePC which fit in my toolbag)'', and I never updated it beyond EasyPeasy and Firefox 3.6. I use it now on my local network in my home and don't go on the internet with it. Basically a terminal on the network for viewing and editing locally saved files when I am watching TV, during commercials.