User-Agent: Mozilla/5.0 (Windows NT 6.0; rv:2.0b8) Gecko/20100101 Firefox/4.0b8 Build Identifier: Mozilla/5.0 (Windows NT 6.0; rv:2.0b8) Gecko/20100101 Firefox/4.0b8 See steps to reproduce below. Reproducible: Always Steps to Reproduce: 1.I download F 4 beta 8 2.I install it and it opens 3. It then freezes and I can't get it to do anything. I give up.

Does the issue still occur if you start Firefox in Safe Mode? http://support.mozilla.com/en-US/kb/Safe+Mode How about with a new, empty profile? http://support.mozilla.com/en-US/kb/Basic+Troubleshooting#Make_a_new_profile

Closing bug as Incomplete - if you are still experiencing this issue or have more information to provide feel free to post back here and we can re-open the bug. You can also get assistance by visiting the Firefox help site -> http://support.mozilla.com/en-US/kb/Ask+a+question