https://www.chromium.org/administrators/linux-quick-start Place this file at /etc/chromium-browser/policies/managed/test_policy.json /usr/lib/chromium-browser/master_preferences

master_preferences

{
  "homepage": "http://www.duckduckgo.com",
  "homepage_is_newtabpage": false,
  "browser": {
    "show_home_button": true
  },
  "bookmark_bar": {
    "show_on_all_tabs": true
  },
  "sync_promo": {
    "show_on_first_run_allowed": false
  },
  "distribution": {
    "import_bookmarks_from_file": "/home/$name/bookmarks.html",
    "import_bookmarks": false,
    "import_search_engine": true,
    "ping_delay": 60,
    "do_not_create_desktop_shortcut": true,
    "do_not_create_quick_launch_shortcut": true,
    "do_not_launch_chrome": true,
    "do_not_register_for_update_launch": true,
    "make_chrome_default": true,
    "make_chrome_default_for_user": true,
    "suppress_first_run_default_browser_prompt": true,
    "suppress_first_run_bubble": true,
    "system_level": true,
    "verbose_logging": true
  },
  "first_run_tabs": [
    "https://wtfismyip.com"
  ],
  "sync_promo" : {
    "show_on_first_run_allowed" : false
  }
}

test_policy.json

{
        "DownloadDirectory": "/tmp",
        "DefaultNotificationsSetting": 2,
        "DefaultGeolocationSetting": 2,
        "AutoplayAllowed": false,
        "SigninAllowed": false,
        "RestrictSigninToPattern": "^$",
        "SyncDisabled": true,
        "CloudPrintProxyEnabled": false,
        "CloudPrintSubmitEnabled": false,
        "SpellCheckServiceEnabled": false,
        "TranslateEnabled": false,
        "SearchSuggestEnabled": false,
        "NetworkPredictionOptions": 2,
        "BrowserNetworkTimeQueriesEnabled": false,
        "MetricsReportingEnabled": false,
        "SafeBrowsingEnabled": false,
        "SafeBrowsingExtendedReportingOptInAllowed": false,
        "BlockThirdPartyCookies": true,
        "SavingBrowserHistoryDisabled": true,
        "URLBlacklist": ["facebook.com", "https://www.facebook.com"],
        "CookiesBlockedForUrls": [
                "[*.]distractify.com",
                "[*.]buzzfeed.com",
                "[*.]yummly.com",
                "[*.]the-daily.buzz",
                "[*.]vice.com",
                "[*.]mashable.com",
                "[*.]on.mash.to",
                "[*.]emuparadise.me",
                "[*.]mediafire.com",
                "[*.]zippyshare.com",
                "[*.]6dollarshirts.com",
                "[*.]aboutads.info",
                "[*.]aboutads.net",
                "[*.]adf.ly",
                "[*.]alloutdoor.com",
                "[*.]allrecipes.com",
                "[*.]allwebgallery.com",
                "[*.]animalsandsociety.org",
                "[*.]ansible.com",
                "[*.]answers.com",
                "[*.]ask.com",
                "[*.]assets.boredpanda.com",
                "[*.]bbc.com",
                "[*.]bit.ly",
                "[*.]bleepingcomputer.com",
                "[*.]boundingintocomics.com",
                "[*.]brightside.me",
                "[*.]buff.ly",
                "[*.]cdn.embedly.com",
                "[*.]cdn.warpedspeed.com",
                "[*.]dailydosenewz.com",
                "[*.]damnlol.com",
                "[*.]dangerousminds.net",
                "[*.]dogs.animal-world.com",
                "[*.]dose.com",
                "[*.]doubleclick.net",
                "[*.]emucross.com",
                "[*.]factinate.com",
                "[*.]favoritescandal.com",
                "[*.]freecouponsonlinenow.com",
                "[*.]fullyfeline.com",
                "[*.]gameinformer.com",
                "[*.]gamestorrent.co",
                "[*.]getpocket.com",
                "[*.]gizmodo.com",
                "[*.]hackernoon.com",
                "[*.]hill.cm",
                "[*.]hotmomsclub.com",
                "[*.]ifttt.com",
                "[*.]inquisitr.com",
                "[*.]isc.sans.edu",
                "[*.]itorrents.org",
                "[*.]j.mp",
                "[*.]kickassbay.com",
                "[*.]knowable.com",
                "[*.]lifehacker.com",
                "[*.]matadornetwork.com",
                "[*.]medium.com",
                "[*.]metrolyrics.com",
                "[*.]mymodernmet.com",
                "[*.]nytimes.com",
                "[*.]patheos.com",
                "[*.]pcgamer.com",
                "[*.]petmd.com",
                "[*.]planetemu.net",
                "[*.]snopes.com",
                "[*.]someecards.com",
                "[*.]superiorbulletin.com",
                "[*.]tcrn.ch",
                "[*.]theguardian.com",
                "[*.]thehill.com",
                "[*.]thenextweb.com",
                "[*.]theoutline.com",
                "[*.]theroot.com",
                "[*.]torrenttornad.com",
                "[*.]torrenty.to",
                "[*.]trib.al",
                "[*.]twentytwowords.com",
                "[*.]uploadvr.com",
                "[*.]upshout.net",
                "[*.]viralcrunch.com",
                "[*.]viralthread.com",
                "[*.]wideopenpets.com"
        ],
        "BackgroundModeEnabled": false,
        "WPADQuickCheckEnabled": false,
        "VideoCaptureAllowed": false,
        "AudioCaptureAllowed": false,
        "EnableMediaRouter": false,
        "NativeMessagingUserLevelHosts": false,
        "DefaultWebBluetoothGuardSetting": 2,
        "ExtensionInstallForcelist": ["geddoclleiomckbhadiaipdggiiccfje;https://clients2.google.com/service/update2/crx","cjpalhdlnbpafiamejdnhcphjbkeiagm;https://clients2.google.com/service/update2/crx","kljjfejkagofbgklifblndjelgabcmig;https://clients2.google.com/service/update2/crx"]
}