*/

   background-color: #fffacd !important;

* Make all the default font sizes xxx:

   font-family: "Calibri" !important;
   font-size: 10pt !important;   

I am trying to enlarge the Thunderbird font for the message listing in my inbox, etc., under Windows 10. This is a new computer. Part of my userChrome.css file must be executing, because the background is yellow. But the font and size part has no effect. Here is my file. Thank you very much! Brenda2018 /* * Do not remove the @namespace line -- it's required for correct functioning */ @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /*Background colour for message list*/ #threadTree > treechildren::-moz-tree-row { background-color: #fffacd !important; } /* * Make all the default font sizes xxx: */ * { font-family: "Calibri" !important; font-size: 10pt !important; }

 * Do not remove the @namespace line -- it's required for correct functioning
 */
@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); 

/*Background colour for message list*/

#threadTree > treechildren::-moz-tree-row {
   background-color: #fffacd !important;
}

/* 
 * Make all the default font sizes xxx:
 */
* {
   font-family: "Calibri" !important;
   font-size: 10pt !important;   
}