Unexpected scrolling in the Whitelist

[Ralph]

When i open the options and see the list of all trusted / untrusted sites, i can click on the icons to activate / change them. But when i click in the area around them (for example between the icon of "Custom" and the Green-/Red-icon, or right from the Green-/Red-icon), the list scrolls to the very top, where the input field for a website is shown. So when i want to edit an entry and click a little bit near the icon, i'm transported to the top and must scroll back to my site i wanted to edit. Is this a bug, or an intended behavior?

Example: When you click in the red marked area of my screenshot, the list scrolls to the top: