--- a/calendar/base/themes/common/calendar-views.css
+++ b/calendar/base/themes/common/calendar-views.css
@@ -449,17 +449,17 @@ calendar-event-box {
     border: 1px solid transparent;
 }
 
 calendar-month-day-box-item[selected="true"] .calendar-color-box,
 calendar-event-box[selected="true"] .calendar-color-box,
 calendar-editable-item[selected="true"] .calendar-color-box {
     color: #000000 !important;
     background-color: #FDF5A0 !important;
-    -moz-box-shadow: 1px 2px 5px rgba(30, 20, 0, 0.6);
+    box-shadow: 1px 2px 5px rgba(30, 20, 0, 0.6);
 }
 
 
 /* RTL styles for the main box and children */
 .multiday-view-main-box {
     direction: ltr;
 }
 
@@ -831,17 +831,17 @@ calendar-month-day-box-item {
     min-height: 13px;
     background-image: -moz-linear-gradient(top, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.01) 50%, rgba(0, 0, 0, 0.05));
     border: 1px solid transparent;
     border-radius: 2px;
 }
 
 calendar-month-day-box calendar-month-day-box-item[allday="true"] .calendar-color-box {
     border-color: rgba(0, 0, 0, 0.5);
-    -moz-box-shadow: inset -1px -1px 0 rgba(255, 255, 255, 0.7), inset 1px 1px 0 rgba(255, 255, 255, 0.7);
+    box-shadow: inset -1px -1px 0 rgba(255, 255, 255, 0.7), inset 1px 1px 0 rgba(255, 255, 255, 0.7);
 }
 
 .calendar-month-day-box-item-label {
     padding: 0px;
     margin: 0px;
 }
 
 .calendar-month-day-box-item-label[time="true"] {
@@ -858,17 +858,17 @@ window[systemcolors] .labeldaybox-contai
     border-top: 1px solid ThreeDShadow;
 }
 
 .dropshadow {
     height: 1.2em;
     margin: 1px;
     padding: 0px 1px;
     background-color: #FFA47D;
-    -moz-box-shadow: 1px 1px 3px rgba(68, 35, 0, 0.7) inset;
+    box-shadow: 1px 1px 3px rgba(68, 35, 0, 0.7) inset;
 }
 
 window[systemcolors] .dropshadow {
     background-color: Highlight !important;
 }
 
 calendar-event-gripbar {
     -moz-box-align: center;