Problem with PDF's in Firefox

[R. G. Newbury]

Whenever I click on a link which points to a PDF, Firefox hangs and must 
be terminated. I have installed the Adobe plugin...In fact I have 
nppdf.so in both /usr/lib/firefox and /usr/lib/mozilla.

Firefox sometimes hangs when I even try to right-click and 'save-as' the 
pdf.

Anyone know why this is happening? Using Firefox 1.5.0.11 (since the 
upgrade does not want to install either).
Geoff

              R. Geoffrey Newbury			
        Helping with the HTTP issue
<a href="http://www.w3.org/Protocols/">HTTP</a>