NewsFox

I keep my .mozilla directory on a flash drive - this allows me to keep my firefox settings at any computer and across any system (Linux/Windows).
I do the same for ThunderBird.

In order to keep newsfox available across all systems - I would need to create a *relative* path to the feeds.
i.e. I cannot point newfox to file:///media/disk/Documents/04-NewsFox/ on a windows machine, it would want to
see something like e:/Documents/04-NewsFox/

It seems simple enough, but my relative paths do not seem to work.

Is it infact possible to do this?