I tested this on 3 of my computers. Two with the new Firefox 3.6 and one with 3.5. On both 3.6 machines clicking on a gallery image with the shutter effect on and then exiting the image by clicking on it will force the page all the way to the top. Even if you had to scroll down to click on the image.
Is anyone else having this problem? I'm having this issue on every site with Nextgen gallery.
Example [Some random site] http://karenblundell.com/web-tools-wordpress/nextgen-gallery-plugin-and-widget-for-wordpress
Clicking on an image then closing it by reclicking on it will force you to scroll to the top of the page. Happens on all my sites as well ONLY On firefox 3.6 [just released].