Tor Browser doesn't ship with with the system addon `screenshots@mozilla.org.xpi` for fingerprinting reasons - see #40007 - but the menu still exists and causes confusion - see https://forum.torproject.net/t/take-screenshot-right-click-and-select-appears-to-do-nothing/2834 We can solve this by setting `extensions.screenshots.disabled` = ~~`false`~~ `true` in 000-tor-browser.js. @duncan edited: false to true, my bad