How to get Liferay portlet id from URL

For users with Administrator authority, the portlet id could be retrieve from Plugins Configuration.

For users without Administrator authority, portlet id still can be retrieved from the browser URL.

Steps:
1. Click on the maximized icon of the target portlet

2. Then copy the URL from the browser address bar into a text editor, eg. notepad

3. search for the following text
    p_p_id=

    and we get the Portlet id value is 116.


Done!!