diff --git a/src/display/canvas.js b/src/display/canvas.js
index 9ab09d06d..c28a094ae 100644
--- a/src/display/canvas.js
+++ b/src/display/canvas.js
@@ -655,9 +655,6 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
     if (sourceCtx.setLineDash !== undefined) {
       destCtx.setLineDash(sourceCtx.getLineDash());
       destCtx.lineDashOffset =  sourceCtx.lineDashOffset;
-    } else if (sourceCtx.mozDashOffset !== undefined) {
-      destCtx.mozDash = sourceCtx.mozDash;
-      destCtx.mozDashOffset = sourceCtx.mozDashOffset;
     }
   }
 
@@ -913,9 +910,6 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
       if (ctx.setLineDash !== undefined) {
         ctx.setLineDash(dashArray);
         ctx.lineDashOffset = dashPhase;
-      } else {
-        ctx.mozDash = dashArray;
-        ctx.mozDashOffset = dashPhase;
       }
     },
     setRenderingIntent: function CanvasGraphics_setRenderingIntent(intent) {
diff --git a/test/features/tests.js b/test/features/tests.js
index 825ddf5a1..63a301f92 100644
--- a/test/features/tests.js
+++ b/test/features/tests.js
@@ -408,9 +408,6 @@ var tests = [
       if ('setLineDash' in ctx) {
         ctx.setLineDash([10, 10]);
         ctx.lineDashOffset = 0;
-      } else {
-        ctx.mozDash = [10, 10];
-        ctx.mozDashOffset = 0;
       }
       ctx.stroke();