diff --git a/dom/media/test/manifest.js b/dom/media/test/manifest.js
index b129117fc46e..a8f1cebc7f3e 100644
--- a/dom/media/test/manifest.js
+++ b/dom/media/test/manifest.js
@@ -664,7 +664,6 @@ var gEMETests = [
       "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
     },
     sessionType:"temporary",
-    sessionCount:1,
     duration:1.60,
   },
   {
@@ -685,7 +684,6 @@ var gEMETests = [
       "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
     },
     sessionType:"temporary",
-    sessionCount:1,
     crossOrigin:true,
     duration:1.60,
   },
@@ -716,7 +714,6 @@ var gEMETests = [
       "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
     },
     sessionType:"temporary",
-    sessionCount:2,
     duration:1.60,
   },
   {
@@ -746,7 +743,6 @@ var gEMETests = [
       "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
     },
     sessionType:"temporary",
-    sessionCount:2,
     crossOrigin:true,
     duration:1.60,
   },
diff --git a/dom/media/test/test_eme_playback.html b/dom/media/test/test_eme_playback.html
index 0010b76af213..1a4ea80932fa 100644
--- a/dom/media/test/test_eme_playback.html
+++ b/dom/media/test/test_eme_playback.html
@@ -48,11 +48,11 @@ function startTest(test, token)
     }
   );
 
-  var gotEncrypted = 0;
+  var gotEncrypted = false;
   var gotPlaying = false;
 
   v.addEventListener("encrypted", function(ev) {
-    gotEncrypted += 1;
+    gotEncrypted = true;
   });
 
   v.addEventListener("playing", function () { gotPlaying = true; });
@@ -66,9 +66,7 @@ function startTest(test, token)
   v.addEventListener("ended", function(ev) {
     ok(true, TimeStamp(token) + " got ended event");
 
-    is(gotEncrypted, test.sessionCount,
-       TimeStamp(token) + " encrypted events expected: " + test.sessionCount
-       + ", actual: " + gotEncrypted);
+    ok(gotEncrypted, TimeStamp(token) + " encrypted event should have fired");
     ok(gotPlaying, TimeStamp(token) + " playing event should have fired");
 
     ok(Math.abs(test.duration - v.duration) < 0.1,