I'm pretty sure both browsers have me logged in. I am replying to you right now from my IE session as NYS_Eric. A couple of posts back, you'll see I also replied as NYS_Eric. That was from my Firefox session.
For whatever reason, the polls show up at the BOTTOM of the sidebar in IE and at the TOP in Firefox. I tried to "Configure Sidebar", but there is no choice for polls when you click on that.
I just tried it in FireFox and the poll is at the bottom of the "My Comments" screen.
Same as in Safari.