+.chat-minimize-button {
+ list-style-image: url('chrome://browser/skin/social/chat-icons.png');
+ -moz-image-region: rect(0, 28px, 14px, 14px);
+}
+
+.chat-minimize-button:hover:active,
+.chat-minimize-button:hover {
+ -moz-image-region: rect(14px, 28px, 28px, 14px);
+}
+
+.chat-swap-button {
+ list-style-image: url('chrome://browser/skin/social/chat-icons.png');
+ -moz-image-region: rect(0, 42px, 14px, 28px);
+}
+
+.chat-swap-button:hover:active,
+.chat-swap-button:hover {
+ -moz-image-region: rect(14px, 42px, 28px, 28px);
+}
+
+chatbar > chatbox > .chat-titlebar > .chat-swap-button {
+ list-style-image: url('chrome://browser/skin/social/chat-icons.png');
+ -moz-image-region: rect(0, 56px, 14px, 42px);
+}
+
+chatbar > chatbox > .chat-titlebar > .chat-swap-button:hover:active,
+chatbar > chatbox > .chat-titlebar > .chat-swap-button:hover {
+ -moz-image-region: rect(14px, 56px, 28px, 42px);
+}
+