Panel: Unset transform translate3d for FF where possible. Fixes #5753.

We don't need translate3d(0,0,0) for hardware acceleration in case of FF and it causes problems with selects due to a FF bug.

Author: jaspermdegroot

css/structure/jquery.mobile.panel.css

@@ -96,7 +96,7 @@
 .ui-panel-animate.ui-panel-position-left.ui-panel-open.ui-panel-display-overlay,
 .ui-panel-animate.ui-panel-position-left.ui-panel-open.ui-panel-display-push {
 	-webkit-transform: translate3d(0,0,0);
-	-moz-transform: translate3d(0,0,0);
+	-moz-transform: none;
 	transform: translate3d(0,0,0);
 }
 /* panel right */
@@ -120,7 +120,7 @@
 .ui-panel-animate.ui-panel-position-right.ui-panel-open.ui-panel-display-overlay,
 .ui-panel-animate.ui-panel-position-right.ui-panel-open.ui-panel-display-push {
 	-webkit-transform: translate3d(0,0,0);
-	-moz-transform: translate3d(0,0,0);
+	-moz-transform: none;
 	transform: translate3d(0,0,0);
 }