Download Popup Extension
Upload and Install the Extension
Open the Joomla Extension Manager, select Upload Package File, and upload the extension file. Upload and Install POWr Popup.
Find POWr Popup Module
In the Joomla Editor, click on Extensions and select Module Manager. Select the POWr Popup Extension.
Add to Fixed Position
Click Position and choose a location to add the Popup.
Set Status to Published. Then go to Menu Assignment to select the pages where POWr Popup appears.
Click Test to view your plugin in the page.
To edit your Popup, click Test, or visit the live web page. Find your Popup on the page, and click the Settings Icon. This will open the POWr Editor. In the POWr Editor, click Import Existing Popup, find Popup- and click Copy.