diff --git a/1.2-Backing-Up.md b/1.2-Backing-Up.md
index fe68225..11f89f0 100644
--- a/1.2-Backing-Up.md
+++ b/1.2-Backing-Up.md
@@ -2,7 +2,7 @@ Hopefully you have read [what](https://github.com/ghacksuserjs/ghacks-user.js/wi
 
 The complete and easiest way to backup is to copy your entire `profile` directory when Firefox is closed. This directory contains many items that a user.js, with certain preferences, can wipe, such as cookies, site specific settings, saved passwords and login names, browsing + download + form history, disk cache, and more. Just backing up the `prefs.js` file is NOT enough, and not recommended by this wiki.
 
-To find your profile directory, go to `about:profiles`. This will list all profiles, so make sure to select the one that is marked as the `profile in use`. You will see an `Open Folder` button which you can click.
+To find your profile directory, go to `about:profiles` (note: this does work with portable Firefox). This will list all profiles, so make sure to select the one that is marked as the `profile in use`. You will see an `Open Folder` button which you can click.
 
 ![about:profiles](https://github.com/ghacksuserjs/ghacks-user.js/blob/master/wikipiki/backup01.png)