We have seen a problem with new Windows Azure portal and Chrome browser. The problem is that if you login Windows Azure Portal in Chrome Browser and publish an Windows azure service package, the upload process will always stuck with 95% and just stuck their forever. If you try to resize the windows the browser might crash as well. 

 

This is a known issue with Windows Azure portal and Windows Azure Portal team is working hard to fix this problem. The current  workaround is to use IE to solve this problem.