Created attachment 511381 [details] [diff] [review] patch STR: 0. When using aero glass, maximize the window 1. Open enough tabs for the tab bar to overflow 2. Open about:addons 3. Switch to a sibling tab, then back to the add-ons manager
Mozilla/5.0 (Windows NT 5.1; rv:2.0b12pre) Gecko/20110216 Firefox/4.0b12pre Verified issue and it's no longer present.