Hi,
I have experience the same issue, but with Internet Explorer 11 on Windows 8.1.
Tried flushing cache, deleting temporary files, cookies, resetting ie, etc.
Several users experience the same behaviour. And for all of us, this strange workaround workds:
1. When you have the white screen:
2. open up the "Developer Tools" by pressing F12
3. Do a simple refresh F5
4. Close the "Developer Tools" by pressing F12
Firefox eqvivalent would be to open the "Debugger" - <ctrl><shift><s>
It would be interresting to hear your how you solve this.
Good luck.
Knut