Is it possible to use IE7 Add-Ons/Firefox extensions in UR

[bookman]

I understand that IE7 is used as the default browser within UR.

I'm wondering if there is some way to activate some of the add-ons available for UR (using IE7 as the default).

For example, I notice that we already can use Roboform within UR.

And Roboform is available for both IE7 and Firefox.

There's one that I use right now that is called Powermarks. It is also available for both IE7 and Firefox www.kaylon.com

It has an instantaneous search for Bookmarks and it is very intuitive to use.

Even, then, being able to use it within UR would be nice and could also help me transition over to using UR.

And of course there are a myriad of other wonderful extensions available for Firefox. What about these. Can they be use if I use Firefox as default browser within UR.