Bug #237045 --> new emoticon artwork for thunderbird contributed by Stephen of pinstripe fame.

mail/components/compose/skin/messengercompose.css

@@ -847,82 +847,82 @@ treechildren::-moz-tree-image(remote-err) {
 /* ..... smiley menu ..... */
 
 #smileySmile > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/smile_n.gif");
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-smile.png");
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyFrown > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/frown_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-frown.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyWink > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/wink_n.gif");
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-wink.png");
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyTongue > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/tongue_n.gif");
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-tongue-out.png");
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyLaughing > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/laughing_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-laughing.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyEmbarassed > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/embarrassed_n.gif");
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-embarassed.png");
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyUndecided > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/undecided_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-undecided.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileySurprise > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/surprise_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-surprised.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyKiss > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/kiss_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-kiss.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyYell > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/yell_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-yell.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyCool > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/cool_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-cool.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyMoney > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/money_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-money-mouth.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyFoot > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/foot_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-foot-in-mouth.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyInnocent > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/innocent_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-innocent.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileyCry > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/cry_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-cry.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }
 
 #smileySealed > .menu-iconic-left {
-  list-style-image: url("chrome://editor/content/images/sealed_n.gif"); 
+  list-style-image: url("chrome://communicator/skin/icons/smileys/smiley-sealed.png"); 
   -moz-image-region: auto; /* cut off inheritance */
 }