After you install the add-on, to verify that the installation was successful, follow these steps:

  1. Go to the Administration icon  and click on it.

  2. Locate Add-ons from the menu and click on it. Click on Manage Add-ons.

  3. Under the User-Installed Add-ons, you should be able to see the JIRA Misc Workflow Extensions add-on as shown in the image below.
  4. In the right column, verify that all the modules are enabled.

Your installation was successful!