Images in scollbarbuttons are not centered, so if something causes the scroll bar buttons to be bigger than the image they contain, the image will look off-center. You can see this here: http://www.bath.ac.uk/%7Epy8ieh/internet/projects/mozilla/widgets/15.html ...at the moment. I am no XUL expert, but I think that adding: <xul:spring flex="1"/> ...either side of the <xul:image inherits="src"/> line should do the trick. This is what has already been done so that the image on the thumb is centered correctly. Thus I submit that the following would be a better binding for "scrollbar" in xulBindings.xml: <binding name="scrollbar"> <content> <xul:scrollbarbutton type="decrement"> <xul:spring flex="1"/> <xul:image inherits="src"/> <xul:spring flex="1"/> </xul:scrollbarbutton> <xul:slider flex="1" inherits="curpos,maxpos,pageincrement,increment"> <xul:thumb inherits="align,src" flex="1"/> </xul:slider> <xul:scrollbarbutton type="increment"> <xul:spring flex="1"/> <xul:image inherits="src"/> <xul:spring flex="1"/> </xul:scrollbarbutton> </content> </binding> hyatt: I'm assigning this direct to you since you created that code.

blah

that's right, reimplement all your widgets in XBL, get them to limp and reassign all bugs to me! lazy bastard! (cc'ing you to increase the spam you receive as a punishment)

Move to M21 target milestone.

I don't think this is a problem in any of today's skins.