diff --git a/tag_database b/tag_database
index ebfa9820a..49a8f1be2 100644
--- a/tag_database
+++ b/tag_database
@@ -119,6 +119,7 @@ isAbsoluteURL:string,utility,browser,url
 isAnagram:string,regexp
 isArrayLike:type,array
 isBoolean:type
+isBrowser:utility,browser
 isDivisible:math
 isEmpty:type,array,object,string
 isEven:math