+@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");\r
+\r
+.tabbrowser-tab:not([selected="true"])\r
+{\r
+ opacity: .85;\r
+}\r
+\r
+.tabbrowser-tab[busy]{\r
+ opacity: .7 !important;\r
+}\r
+.tabbrowser-tab:not([selected]){\r
+ opacity: 1 !important;\r
+}\r