Just as an FYI ( For Your Information ) . . . a Freeware programme by the name of
Sandboxie does work with K-Meleon. I have nothing to do with this programme, except as a user.
It may be found at:
http://www.sandboxie.com/
Be sure to 'read' the web page, and, the FAQ section for additional information.
I hope this helps.
Sliderule