/* ::::: columns :::::: */
-treechildren:-moz-tree-cell(activeColumn) {
+treechildren:-moz-tree-image(activeColumn) {
list-style-image: url("chrome://messenger/skin/icons/dot.gif");
}
-treechildren:-moz-tree-cell(activeColumn, Enabled-true) {
+treechildren:-moz-tree-image(activeColumn, Enabled-true) {
list-style-image: url("chrome://messenger/skin/icons/check.gif");
}