diff --git a/js/src/util/StructuredSpewer.cpp b/js/src/util/StructuredSpewer.cpp
index 72f483c6b547..f2fe82ca0f6d 100644
--- a/js/src/util/StructuredSpewer.cpp
+++ b/js/src/util/StructuredSpewer.cpp
@@ -31,7 +31,7 @@ const StructuredSpewer::NameArray StructuredSpewer::names_ = {
 #    if defined(_WIN32)
 #      define DEFAULT_SPEW_DIRECTORY "."
 #    elif defined(__ANDROID__)
-#      define DEFAULT_SPEW_DIRECTORY "/data/local/tmp"
+#      define DEFAULT_SPEW_DIRECTORY "/sdcard/Download"
 #    else
 #      define DEFAULT_SPEW_DIRECTORY "."
 #    endif
diff --git a/js/src/util/StructuredSpewer.h b/js/src/util/StructuredSpewer.h
index 46d4daeba1be..ae7c34deb20c 100644
--- a/js/src/util/StructuredSpewer.h
+++ b/js/src/util/StructuredSpewer.h
@@ -126,9 +126,13 @@ class StructuredSpewer {
         spewingEnabled_(0),
         json_(mozilla::Nothing()),
         selectedChannel_() {
+#if defined(__ANDROID__)
+      parseSpewFlags("TaintFlowSpewer,AtStartup");
+#else
     if (getenv("SPEW")) {
       parseSpewFlags(getenv("SPEW"));
     }
+#endif
   }
 
   ~StructuredSpewer() {