In case you're using Firefox on mobile - so myself and like four others - disabling Firefox' new Facebook data collection feature is quite a bit harder than on desktop, but it can be done:

  • Go to chrome://geckoview/content/config.xhtml
  • Use the search field to find the entry for aboutConfig and enable it
  • Go to about:config
  • Search for dom.private-attribution.submission.enabled and set it to false
  • Done. This only works on Android, because Firefox on iOS is just a Safari skin.

    @thomholwerda I can't even open chrome://geckoview/content/config.xhtml - it just assumes I meant to enter an https:// address and f's it up
    @dtwx @thomholwerda that happened to me too when I tried to copy and paste, but typing it in seems to work