diff --git a/README.md b/README.md
index cde0ebb99..22ebd3f70 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,8 @@ To top it off, we handle all method dependency and alias mapping for you.
 lodash backbone
 ```
 
- * CSP builds, supporting default Content Security Policy restrictions, may be created using the `csp` modifier argument.
+ * CSP builds, supporting default [Content Security Policy](http://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html) restrictions, may be created using the `csp` modifier argument.
+   The `csp` modifier is an alais of the `mobile` modifier. Chrome extensions will require [sandboxing](http://developer.chrome.com/trunk/extensions/sandboxingEval.html) or the use of either the `csp`, `mobile`, or `underscore` build.
 ```bash
 lodash csp
 ```