add the firefox extension "web developer" found at
http://tinyurl.com/56cjp
When viewing a page that shows blank, but done, click on the (new) developer tool bar and view code. You will probably find, in the code, that it is a page built on the fly like .asp, using ActiveX, or php, or some or all of the above. There is also an extension that you can just click and 'display this page in MSIE' located here
http://tinyurl.com/3sn3a
Then when you see a 'blank' page in FF, just right-click, choose 'view in IE' and you're there.
Until MS changes the way they require code, (i.e. not standard W3) you will get this from other browsers. That said, you will be waiting till Hell gets frozen.