diff --git a/Appendix-B:-Firefox-Add-ons.md b/Appendix-B:-Firefox-Add-ons.md
index 52cbd09..6128ed8 100644
--- a/Appendix-B:-Firefox-Add-ons.md
+++ b/Appendix-B:-Firefox-Add-ons.md
@@ -35,7 +35,7 @@ These are all, where applicable, best configured to `deny-all` and whitelist.
 [2] We do not recommend UA spoofing (see section 2697 in the `ghacks user.js`). If you do, UAControl offers whitelisting. User-Agent JS Fixer is only needed if your choice of add-on doesn't cover JS
 
 NOTE: At the time of publication the following are not e10s compatible:
-Google Privacy, NoRedirect, UAControl, User-Agent JS Fixer, Popup Blocker Ultimate
+Google Privacy, NoRedirect, UAControl, User-Agent JS Fixer
 
 ### Still Looking For...
 * e10s compatible UA solution that allows whitelisting and covers JS