Bug 595656 - Add-ons view rounded border corners sometimes cut off by content. r=dtownsend

toolkit/themes/gnomestripe/global/inContentUI.css

@@ -61,9 +61,7 @@ html|html {
 /* Content */
 *|*.main-content {
   /* Needed to allow the radius to clip the inner content, see bug 595656 */
-  /* Disabled because of bug 623615
   overflow: hidden;
-  */
   background-color: -moz-Field;
   color: -moz-FieldText;
   border: 1px solid ThreeDShadow;

toolkit/themes/pinstripe/global/inContentUI.css

@@ -62,9 +62,7 @@ html|html {
 /* Content */
 *|*.main-content {
   /* Needed to allow the radius to clip the inner content, see bug 595656 */
-  /* Disabled because of bug 623615
   overflow: hidden;
-  */
   background-image: -moz-linear-gradient(top, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.25) 50%, rgba(255, 255, 255, 0.05));
   border: 1px solid rgba(50, 65, 92, 0.4);
   border-radius: 5px;

toolkit/themes/winstripe/global/inContentUI.css

@@ -105,9 +105,7 @@ html|html {
 /* Content */
 *|*.main-content {
   /* Needed to allow the radius to clip the inner content, see bug 595656 */
-  /* Disabled because of bug 623615
   overflow: hidden;
-  */
   background-color: rgba(255, 255, 255, 0.35);
   background-image: -moz-linear-gradient(top,
                                          rgba(255, 255, 255, 0),