#details-pane-toggle {
list-style-image: url("chrome://browser/skin/devtools/debugger-collapse@2x.png");
-moz-image-region: rect(0px,32px,32px,0px);
#details-pane-toggle {
list-style-image: url("chrome://browser/skin/devtools/debugger-collapse@2x.png");
-moz-image-region: rect(0px,32px,32px,0px);