*Proctorio is made to work in Google Chrome*
Navigate to 'Secure Exam Proctor' on the left hand navigation in your course. (If you don't see it in the left hand navigation, please contact your instructor to enable it)
Follow the instructions to install Proctorio to your Google Chrome web browser.
You should see Proctorio show up and be enabled in your Chrome Extensions page.
You should be able to take your quiz now. You can uninstall Proctorio after you take your exam if you have privacy concerns, however, you will have to reinstall it each time you need to use it if you choose to do so.