[ydn-delicious] Firefox extension problem

[stevensjch]

I installed the new extension (1.5.26) in my browser (Firefox 2.0.0.3)
but when I restarted the browser I didn't get the toolbar buttons or
the del.icio.us menu.
I've tried uninstalling and reinstalling the extension, but I still
get nothing.
Any ideas what could be wrong?