The editContactPanel is a clone FX's editBookmarkPanel. This one uses since long time the arrowpopup. I think we should follow this way. An advantage would also be, when FX changes some stylings in this arrowpopup, we adopt this automatically and don't need a separate bug to follow like we had (bug 801261). This change is simple by adding type="arrow" and removing our own styling.
Created attachment 763080 [details] [diff] [review] patch I had to change the popup position to after_start for rtl and ltr. The actual behavior is already wrong for rtl languages (the popup opens in the same direction as on ltr).
Comment on attachment 763080 [details] [diff] [review] patch Yes! ui-r=me! r=me! So good. :) Thanks, Blake.