PopUpKill3r - the ultimate popup killing maching;
MouseGestures - hold down right mouse button and draw;it will track the movement of the mouse in the browser window providing actions;

Other Features:
-Disable java scripts (statusbar,contextmenu modifiers ,timers);
-Run external scripts inside MSIE at runtime;
-Skip downloading files to SpeedUp browsing;
-Spy Window to see what Msie does;
-Search in page or with an external search engine then
-Highlite searched text;
-Browse from,through IExplorer opened windows;