// do not put any code into this first line, as it gets ignored by Firefox

// we zero extensions.autoDisableScopes so our pre-installed extensions activate by default
pref("extensions.autoDisableScopes", 0);

// we turn off annoying setup popups and pages; these settings are the result more of trial and error than thorough understanding by me, so more research might be warranted to discipline them
pref("startup.homepage_welcome_url", "file:///opt/firefox/blank.html");
pref("browser.startup.homepage", "file:///opt/firefox/blank.html");
pref("browser.startup.blankWindow", true);
pref("datareporting.policy.firstRunURL", "");
pref("browser.shell.checkDefaultBrowser", false);
pref("datareporting.policy.dataSubmissionPolicyBypassNotification", true);