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+How to set up and maintain multiple profiles
+
+### Firefox [Installed]
+
+In order to maintain profiles, you will need to open Firefox with a switch to bring up the Profile Manager. Make sure Firefox is closed.
+
+- Windows: Press Windows Key + R, type `firefox.exe -p` into the Run dialog that appears, and press Enter.
+- Windows: Or create/edit a shortcut and append `-p` to the `Target`
+   * eg: `"C:\Program Files\Mozilla Firefox\firefox.exe" -p`
+- Mac: Open a Terminal window — press Command+Space, type Terminal, and press Enter to do it from Spotlight. Type `/Applications/Firefox.app/Contents/MacOS/firefox-bin -profilemanager` into the Terminal and press Enter.
+- Linux: Open a terminal and run the `firefox -profilemanager` command.
+
+This will bring up the profile manager, where you can create, rename, delete and launch profiles.
+
+![](https://github.com/ghacksuserjs/ghacks-user.js/blob/master/wikipiki/profiles01.png)
+
+In this example, a profile called `ghacks test` was created in the default `\AppData\Roaming\Mozilla\Firefox\Profiles` directory. WARNING: If you choose your own folder location for the profile, select a new or empty folder. If you choose a folder that isn't empty and you later remove the profile and choose the "Delete Files" option, everything inside that folder will be deleted.
+
+![](https://github.com/ghacksuserjs/ghacks-user.js/blob/master/wikipiki/profiles02.png)
+
+Here is a [Mozilla Support](https://support.mozilla.org/t5/Install-and-Update/Use-the-Profile-Manager-to-create-and-remove-Firefox-profiles/ta-p/2914) page with lots of pictures.
+
+### Firefox [Portable]
+
+You can't use the Profile Manager or controls in `about:profiles` with Firefox Portable.
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