diff --git a/1.7-Setting-Extension-Permission-Exceptions.md b/1.7-Setting-Extension-Permission-Exceptions.md
index 42e1fa2..b8224fc 100644
--- a/1.7-Setting-Extension-Permission-Exceptions.md
+++ b/1.7-Setting-Extension-Permission-Exceptions.md
@@ -6,6 +6,8 @@ Extensions <sup>1</sup> that use local dom storage and/or indexedDB **will break
 
 ![](https://github.com/ghacksuserjs/ghacks-user.js/blob/master/wikipiki/exceptions03.png)
 
+:exclamation: Note: Private Browsing mode (currently) does not allow IndexedDB
+
 <sup>1</sup> `Extensions` = Web Extensions API, `Legacy Extensions` = legacy APIs or the Add-on SDK.
 
 ### :small_orange_diamond: Strategy
@@ -32,7 +34,7 @@ You have two choices
 
 ![](https://github.com/ghacksuserjs/ghacks-user.js/blob/master/wikipiki/exceptions02.png)
 
-`Pro Tip`: If you are not sure what extensions require IndexedDB
+`Pro Tip`: If you are not sure what extensions require IndexedDB <sup>1</sup>
   * enable first party cookies in your `user.js` and restart
   * check the options (if any) for each extension
   * look in your `profile\storage\default` directory for `moz-extension` entries (see pic 1)
@@ -42,3 +44,5 @@ You have two choices
      * exception: `moz-extension://e0cc77c6-3785-4297-a034-7896f46563af`
   * set cookies in the `user.js` back to none and restart
   * clean out any unwanted cookies and storage collected during this exercise
+
+<sup>1</sup> This will not work in Private Browsing mode
\ No newline at end of file