So long as you are only running Firefox 3 or earlier you can download and install Firefox Preview from http://www.rj-texted.se/download.htm and then you can use Gecko (Firefox engine) in PSPad. Doesn't work for Firefox 4 though.
-- Carbonize <http://forum.pspad.com/read.php?2,55149,55150> PSPad freeware editor http://www.pspad.com
