+ firefox

dots/firefox/policies.json

@@ -0,0 +1,26 @@
+{
+    "policies": {
+        "documentation":            "https://mozilla.github.io/policy-templates/"
+      , "DisableFirefoxStudies":    true
+      , "comment1":                 "never run SHIELD studies or do Heartbeat surveys"
+      , "DisablePocket":            true
+      , "DisableTelemetry":         true
+      , "DisplayBookmarksToolbar":  "never"
+      , "comment2":                 "{always, never, newtab}"
+      , "DisplayMenuBar":           "default-off"
+      , "comment3":                 "{always, default-off, default-on, never}"
+      , "DontCheckDefaultBrowser":  true
+      , "EnableTrackingProtection":
+            {
+                  "Value":          true
+                , "Locked":         true
+                , "Cryptomining":   true
+                , "Fingerprinting": true
+            }
+      , "OverrideFirstRunPage":     ""
+      , "comment4":                 "specify a URL to be used as the first run page"
+      , "OverridePostUpdatePage":   ""
+      , "comment5":                 "specify a URL to be displayed after Firefox is updated"
+      , "SearchBar":                "unified"
+    }
+  }

dots/firefox/userChrome.css

@@ -0,0 +1,9 @@
+/* disable top bar and top tabs */
+
+#TabsToolbar {
+    visibility: collapse;
+}
+
+#titlebar {
+    display: none;
+}