--- a/widget/android/GfxInfo.cpp
+++ b/widget/android/GfxInfo.cpp
@@ -408,22 +408,26 @@ GfxInfo::GetFeatureStatusImpl(int32_t aF
   if (mGLStrings->Vendor().IsEmpty() || mGLStrings->Renderer().IsEmpty()) {
     *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
     return NS_OK;
   }
 
   // Don't evaluate special cases when evaluating the downloaded blocklist.
   if (aDriverInfo.IsEmpty()) {
     if (aFeature == nsIGfxInfo::FEATURE_CANVAS2D_ACCELERATION) {
-      // It's slower than software due to not having a compositing fast path
-      if (mSDKVersion >= 11) {
-        *aStatus = nsIGfxInfo::FEATURE_STATUS_OK;
-      } else {
+      if (mSDKVersion < 11) {
+        // It's slower than software due to not having a compositing fast path
         *aStatus = nsIGfxInfo::FEATURE_BLOCKED_OS_VERSION;
         aFailureId = "FEATURE_FAILURE_CANVAS_2D_SDK";
+      } else if (mGLStrings->Renderer().Find("Vivante GC1000") != -1) {
+        // Blocklist Vivante GC1000. See bug 1248183.
+        *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
+        aFailureId = "FEATURE_FAILED_CANVAS_2D_HW";
+      } else {
+        *aStatus = nsIGfxInfo::FEATURE_STATUS_OK;
       }
       return NS_OK;
     }
 
     if (aFeature == FEATURE_WEBGL_OPENGL) {
       if (mGLStrings->Renderer().Find("Adreno 200") != -1 ||
           mGLStrings->Renderer().Find("Adreno 205") != -1)
       {