diff --git a/toolkit/components/gfx/SanityTest.js b/toolkit/components/gfx/SanityTest.js
index 256eb0c0d70..9603b54acf7 100644
--- a/toolkit/components/gfx/SanityTest.js
+++ b/toolkit/components/gfx/SanityTest.js
@@ -74,16 +74,6 @@ function reportTestReason(val) {
   histogram.add(val);
 }
 
-function reportSnapshotContents(canvas) {
-  try {
-    var data = canvas.toDataURL();
-    Cc['@mozilla.org/observer-service;1'].
-        getService(Ci.nsIObserverService).
-        notifyObservers(null, "graphics-sanity-test-failed", data);
-  } catch (e) {
-  }
-}
-
 function annotateCrashReport(value) {
   try {
     // "1" if we're annotating the crash report, "" to remove the annotation.
@@ -177,9 +167,7 @@ let listener = {
 
     // Perform the compositor backbuffer test, which currently we use for
     // actually deciding whether to enable hardware media decoding.
-    if (!testCompositor(this.win, this.ctx)) {
-      reportSnapshotContents(this.canvas);
-    }
+    testCompositor(this.win, this.ctx);
 
     this.endTest();
   },
diff --git a/toolkit/components/telemetry/TelemetryEnvironment.jsm b/toolkit/components/telemetry/TelemetryEnvironment.jsm
index 16f5f843cc9..950d18ab116 100644
--- a/toolkit/components/telemetry/TelemetryEnvironment.jsm
+++ b/toolkit/components/telemetry/TelemetryEnvironment.jsm
@@ -169,7 +169,6 @@ const EXPERIMENTS_CHANGED_TOPIC = "experiments-changed";
 const SEARCH_ENGINE_MODIFIED_TOPIC = "browser-search-engine-modified";
 const SEARCH_SERVICE_TOPIC = "browser-search-service";
 const COMPOSITOR_CREATED_TOPIC = "compositor:created";
-const SANITY_TEST_FAILED_TOPIC = "graphics-sanity-test-failed";
 
 /**
  * Get the current browser.
@@ -827,7 +826,6 @@ EnvironmentCache.prototype = {
     Services.obs.addObserver(this, SEARCH_ENGINE_MODIFIED_TOPIC, false);
     Services.obs.addObserver(this, SEARCH_SERVICE_TOPIC, false);
     Services.obs.addObserver(this, COMPOSITOR_CREATED_TOPIC, false);
-    Services.obs.addObserver(this, SANITY_TEST_FAILED_TOPIC, false);
   },
 
   _removeObservers: function () {
@@ -835,7 +833,6 @@ EnvironmentCache.prototype = {
     Services.obs.removeObserver(this, SEARCH_ENGINE_MODIFIED_TOPIC);
     Services.obs.removeObserver(this, SEARCH_SERVICE_TOPIC);
     Services.obs.removeObserver(this, COMPOSITOR_CREATED_TOPIC);
-    Services.obs.removeObserver(this, SANITY_TEST_FAILED_TOPIC);
   },
 
   observe: function (aSubject, aTopic, aData) {
@@ -861,9 +858,6 @@ EnvironmentCache.prototype = {
         // first compositor to be created and then query nsIGfxInfo again.
         this._updateGraphicsFeatures();
         break;
-      case SANITY_TEST_FAILED_TOPIC:
-        this._onGraphicsSanityTestFailed(aData);
-        break;
     }
   },
 
@@ -943,11 +937,6 @@ EnvironmentCache.prototype = {
     }
   },
 
-  _onGraphicsSanityTestFailed: function (aData) {
-    let gfxData = this._currentEnvironment.system.gfx;
-    gfxData.sanityTestSnapshot = aData;
-  },
-
   /**
    * Get the build data in object form.
    * @return Object containing the build data.