Hi, maybe Selenium Webdriver can automate this page(?) but the Selenium IDE can not open or record any Firefox internal page. Your post made me curious so I tried with the latest version of the Selenium IDE and nothing happens:
https://www.screencast.com/t/0c1TETLKjkDk
Every other result would have surprised me, as the browser does provide the events/DOM access to send clicks to internal pages. That is why visual automation with XClick/XClickText and XType are the only options to automate the browser itself and or to automate web extensions. If I overlooked an option, please let us know 