diff --git a/widget/android/GfxInfo.cpp b/widget/android/GfxInfo.cpp
index 3122bde30587..ed65710ea3e4 100644
--- a/widget/android/GfxInfo.cpp
+++ b/widget/android/GfxInfo.cpp
@@ -599,12 +599,20 @@ nsresult GfxInfo::GetFeatureStatusImpl(
       const nsCString& gpu = mGLStrings->Renderer();
       NS_LossyConvertUTF16toASCII model(mModel);
 
-      // Enable Webrender on all Adreno 3xx, 4xx, 5xx and 6xx GPUs
+      // Enable Webrender on all Adreno 3xx, 4xx, and 6xx GPUs
       isUnblocked |= gpu.Find("Adreno (TM) 3", /*ignoreCase*/ true) >= 0 ||
                      gpu.Find("Adreno (TM) 4", /*ignoreCase*/ true) >= 0 ||
-                     gpu.Find("Adreno (TM) 5", /*ignoreCase*/ true) >= 0 ||
                      gpu.Find("Adreno (TM) 6", /*ignoreCase*/ true) >= 0;
 
+      // Enable Webrender on all Adreno 5xx GPUs...
+      isUnblocked |=
+          gpu.Find("Adreno (TM) 5", /*ignoreCase*/ true) >= 0 &&
+          // Excluding 505 and 506 on Android 9 due to crashes during
+          // shader compilation. See bug 1609191.
+          !((gpu.Find("Adreno (TM) 505", /*ignoreCase*/ true) >= 0 ||
+             gpu.Find("Adreno (TM) 506", /*ignoreCase*/ true) >= 0) &&
+            mSDKVersion == 28);
+
       // Enable Webrender on all Mali-Txxx GPUs
       isUnblocked |= gpu.Find("Mali-T", /*ignoreCase*/ true) >= 0;