[Jslib] question about installation on linux

[rpg@sift.info]

Following up the earlier discussion, I saw that a "user-mode" install
of jslib had been made available (i.e., one that goes into my personal
.mozilla structure, instead of into the site ---
/usr/local/lib/mozilla in my case).

I installed jslib successfully, and can find the directory:

[rpg@tsathoggua macbeth]$ ls ~/.mozilla/default/<dirname-deleted>/chrome/jslib/
contents.rdf  install  jslib.js   network  sound  xul
debug         io       jslib.xul  rdf      utils  zip

but when I try to follow the instructions on the web page to test it
out, it doesn't work.  All I get is an error message saying:

The file /usr/lib/mozilla/chrome/packages/core/jslib.xul cannot be
found.  Please check the location and try again.

My best guess is that the special chrome url isn't working to check my
user chrome directory.

I'm using a slightly old mozilla (v. 1.0.1), so perhaps I just need to
upgrade.  Any advice?  Any way to debug this problem?

Thanks,
R