diff --git a/Appendix-B-References.md b/Appendix-B-References.md
index 565e6d6..19f330e 100644
--- a/Appendix-B-References.md
+++ b/Appendix-B-References.md
@@ -1,7 +1,8 @@
 ### :small_orange_diamond: Mozilla
 
 * [Bugzilla](https://bugzilla.mozilla.org/describecomponents.cgi?product=Firefox) - **h**ttps://bugzilla.mozilla.org/describecomponents.cgi?product=Firefox
-* [DXR](https://dxr.mozilla.org/mozilla-central/source/) - **h**ttps://dxr.mozilla.org/mozilla-central/source/
+* [Code: DXR](https://dxr.mozilla.org/mozilla-central/source/) - **h**ttps://dxr.mozilla.org/mozilla-central/source/
+* [Code: Searchfox](https://searchfox.org/) - **h**ttps://searchfox.org/
 * Firefox "about:" URLs: `about:about`
 * [Firefox Enterprise: Policies](https://support.mozilla.org/products/firefox-enterprise/policies-enterprise) - **h**ttps://support.mozilla.org/products/firefox-enterprise/policies-enterprise
    * [Policy Templates](https://github.com/mozilla/policy-templates) - **h**ttps://github.com/mozilla/policy-templates