Image Cache

Hi,
Does anyone know if it is possible (and if so how to) access the
browser cache (specifically the images) via JavaXPCOM, I have the
bowser instance up and running and am able to use it to open pages
etc.  I need to do some processing on the images of a page.  The
filenames of the images for the current page would be ideal so that i
can load this file in my Java code and use it from there.

Any help would be much appreciated,

Richard