Some people are complaining about Firefox2. It hangs or crashes a lot. So you could install Firefox3, but why not try Opera? I have downloaded and installed Opera for Linux (search in Google on Opera for Linux and select the Fedora core 5 version). Installing it is easy but it will not show up on the menu. For the moment just run it from the right click menu (if you have activated this with xfce-setting-show) and type "opera" . Newsweek.com which crashes on my and a lot of other machines runs fine. Later on you can get it into your main menu by tweaking the group-app.xml file.