-added firefox role

-attempt again to disable screensaver

roles/firefox/files/user.js

@@ -0,0 +1 @@
+user_pref("media.autoplay.default", 0);

roles/firefox/tasks/main.yaml

@@ -0,0 +1,18 @@
+---
+- name: install firefox
+  become: true
+  package:
+    name: firefox
+    state: present
+- name: initialze firefox profile
+  command: /usr/bin/firefox --headless -CreateProfile "vtomb /home/{{ def_username }}/snap/firefox/common/.mozilla/firefox/vtomb"
+
+
+- name: copy firefox user prefs
+  copy:
+          src: "{{ role_path }}/files/user.js"
+          dest: "/home/{{ def_username }}/snap/firefox/common/.mozilla/firefox/vtomb"
+          owner: "{{ def_username }}"
+          group: "{{ def_username }}"
+
+