--- a/mobile/android/base/GeckoAppShell.java
+++ b/mobile/android/base/GeckoAppShell.java
@@ -2243,16 +2243,19 @@ public class GeckoAppShell
         sRepaintRunnable.addRectToRepaint(top, left, bottom, right);
     }
 
     private static int clamp(int min, int val, int max) {
         return Math.max(Math.min(max, val), min);
     }
 
     public static void screenshotWholePage(Tab tab) {
+        if (GeckoApp.mAppContext.isApplicationInBackground())
+            return;
+
         if (sMaxTextureSize == 0) {
             int[] maxTextureSize = new int[1];
             GLES20.glGetIntegerv(GLES20.GL_MAX_TEXTURE_SIZE, maxTextureSize, 0);
             sMaxTextureSize = maxTextureSize[0];
             if (sMaxTextureSize == 0)
                 return;
         }
         ImmutableViewportMetrics viewport = GeckoApp.mAppContext.getLayerController().getViewportMetrics();