Mozilla should get its own house in order
Options -> Disable JavaScript: Buried like M$ does with Win10 settings.
Options -> Disable Images: Also buried like M$ does with Win10 settings.
Options -> Privacy: Accept Cookies defaults to Always accept 3rd party.
To disable Images this must also be set: dom-image-srcset-enabled false.
Firefox defaults to Google for tons of settings, have to blank all for Privacy.
Search: Where is Startpage.com or Duckduckgo.com (Yahoo less trustable).
Its tricky to turn off all the overbearing warnings about Full-Screen Toggling.
Even harder to stop Firefox checking Addon versions even if all disabled.