[Firekeeper] small bugreport

[readytogo2]

Hello,

short instructions how to show the bug:
- visit some page with a javascript button, for example www.bugmenot.com
- press the button (get accounts in this case)
- press the back button in firefox
- press the button again (perhaps with other request query)
--> It will not work. Nothing will happen.

If firekeeper is disabled and I reload the page all is working fine.

best regards