Firefox of course..., but with some reservations.. As Firefox's security gets beefed up, it's starting to have compatibility issues with certain hardware and web sites. As of version 2.0011 (for me anyway), it will no longer display pictures at Amazon or Webshots. I run it with "No Script", but this is after granting (what I believe to be), the proper permissions. "Flashblock" no longer functions either in this version and it needs to be disabled. I installed a a Foxconn 945P7AA motherboard a couple of days in a machine that had had a board with the newer Intel G965 chipset. The Foxconn board has a "Broadcom" integrated LAN adapter and the newest Firefox is unable to connect to the internet. When I install an older, (2.004) version it hooks up just fine. Unless I missed a "you gotta set it" configuration button somewhere on the later version. But the fact remains, it won't run as installed. Yes, I updated the Broadcom drivers.