Issue 3176:  	 Error: XUL box for hbox element contained an inline span child, forcing all its children to be wrapped in a block. chrome://browser/content/browser.xul Line 0
Issue 3176:  	 Error: XUL box for hbox element contained an inline span child, forcing all its children to be wrapped in a block. chrome://browser/content/browser.xul Line 0

http://code.google.com/p/fbug/source/detail?r=7114

firebug/tracing-console,firebug/tracing-console