Firefox 5 has been a hassle these days. Thank someone that has found a vulnerability in Firefox 4.0.1 now I have to upgrade and to my outcome, it lags terribly. Only solution was to re-install but the same outcome over and over again did I encounter. Luckily, there’s Chrome for Linux and it is Chromium! You can do a quick “sudo apt-get install chromium” to install it.
Source: http://www.chromium.org/
Genesis Database 