diff --git a/toolkit/components/places/nsNavHistory.cpp b/toolkit/components/places/nsNavHistory.cpp
index f50c0ad90fb..82fd274d3f2 100644
--- a/toolkit/components/places/nsNavHistory.cpp
+++ b/toolkit/components/places/nsNavHistory.cpp
@@ -1257,7 +1257,8 @@ nsNavHistory::CanAddURI(nsIURI* aURI, bool* canAdd)
       scheme.EqualsLiteral("resource") ||
       scheme.EqualsLiteral("data") ||
       scheme.EqualsLiteral("wyciwyg") ||
-      scheme.EqualsLiteral("javascript")) {
+      scheme.EqualsLiteral("javascript") ||
+      scheme.EqualsLiteral("blob")) {
     *canAdd = false;
     return NS_OK;
   }
diff --git a/toolkit/components/places/tests/unit/test_async_history_api.js b/toolkit/components/places/tests/unit/test_async_history_api.js
index 5a2f2dfd214..f3eb9d12868 100644
--- a/toolkit/components/places/tests/unit/test_async_history_api.js
+++ b/toolkit/components/places/tests/unit/test_async_history_api.js
@@ -408,6 +408,7 @@ function test_non_addable_uri_errors()
     "data:,Hello%2C%20World!",
     "wyciwyg:/0/http://mozilla.org",
     "javascript:alert('hello wolrd!');",
+    "blob:foo",
   ];
   let places = [];
   URLS.forEach(function(url) {