Nasty Bug in FF4 Rated 1 out of 5 stars

Giving this one star because it has a pretty bad bug. When you go to a page that has a popup such as

http://www.amazon.com/Clear2o-CWS100AW-Water-Filtration-Pitcher/dp/B004918OPO/ref=pd_sim_sg_3

Click on the product image which pops up a new window.

Then click the [X] to close the window it closes but asks if you want to close all tabs as if you clicked the main browsers close [X] button (note that I am referring to the browser close not the close button on the page).

I have verified that this is the add-on causing this issue for me because I disabled all add-ons and tried each one on its own. Please advise if you can/will fix this ASAP or I will have to stick by my 1 star and uninstall.

I tried to replicate the bug in Firefox 4.0.1 on Windows XP and Windows 7. I was unsuccessful.Perhaps something else is wrong, I would try testing the bug on a fresh Firefox Profile. Could you also provide what OS and version of Firefox you are using?

EDIT: This may be a problem with the Jetpack SDK itself (looks like it might be binding incorrectly to the browser window). I will do some more research as to what the problem is.