2204: replace [test]

old test: https://developer.mozilla.org/samples/domref/fullscreen.html
- for me the video comes up as "no video with supported format and mime type", so may not be practical for all users

user.js

@@ -990,7 +990,7 @@ user_pref("browser.link.open_newwindow.restriction", 0);
 /* 2204: disable Fullscreen API (requires user interaction) to prevent screen-resolution leaks
  * [NOTE] You can still manually toggle the browser's fullscreen state (F11),
  * but this pref will disable embedded video/game fullscreen controls, e.g. youtube
- * [TEST] https://developer.mozilla.org/samples/domref/fullscreen.html ***/
+ * [TEST] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#screen ***/
    // user_pref("full-screen-api.enabled", false);
 /* 2210: block popup windows
  * [SETTING] Privacy & Security>Permissions>Block pop-up windows ***/