}
#+end_src
*** Black screen by default
+userChrome.css:
#+begin_src css :tangle ~/.mozilla/firefox/armaan-release/chrome/userChrome.css
#main-window,
#browser,
color: #fff !important;
}
#+end_src
+
+userContent.css:
#+begin_src css :tangle ~/.mozilla/firefox/armaan-release/chrome/userContent.css
@-moz-document url("about:home"), url("about:blank"), url("about:newtab") {
body {