Acrobat plugin for firefox doesn't work

[Jonathan Ryshpan]

I've installed a recent Adobe PDF reader, AdobeReader_enu-7.0.8-1, from
the Adobe site.  After recommended minor tweaks, it runs OK.

However, the plugin nppdf.so, which I've installed as:
   /usr/lib/firefox-1.5.0.8/plugins/nppdf.so
isn't recognized by firefox.  It doesn't show up on about:plugins, nor
does it work.

Any ideas?

jon