Today, I attempt to find out which one add-on can replace my skin of Firefox, and easy to install. "Personas" is a best choice for me when I attempted to install many skin add-ons. If you also want to make your Firefox to be beautified, you shall try to install it.

Firefox 3.5.3 has been released recetnly, if you are using Firefox for a log time, your Firefox will be forced to upgrade to 3.5.3 version. However, something I didn't expected that this version cause the stability problem...