Exactly which Linux distribution (distro) and version are you running? <br /> Most distros that included Firefox 2.0.0.x don't have the packages necessary to run a Firefox 3.0+ version. <br /> http://www.mozilla.com/en-US/firefox/system-requirements.html For example, the version of Xandros Linux ''(from early 2007)'' that Asus was using on the ''EeePC'' netbook doesn't have the GTK package needed to run Firefox 3+ versions, you need to update it. See this: <br /> http://forum.eeeuser.com/viewtopic.php?id=41815 <br /> or this: <br /> http://wiki.eeeuser.com/howto:installfirefox3?s=firefox When I decided that I wanted a newer version of Firefox on my EeePC 900, I did that procedure but Xandros ran like a dog with Firefox 3.5 (at that time). Eventually, I replaced the Xandros OS with Ubuntu 10.4, which included Firefox 3.6, and my EeePC netbook runs better than it ever did with Xandros and Firefox 2.0.0.14 .