Edited wiki page GettingStarted through web user interface.

GettingStarted.wiki

diff --git a/GettingStarted.wiki b/GettingStarted.wiki
index 7de85c3..f1f0111 100644
--- a/GettingStarted.wiki
+++ b/GettingStarted.wiki
@@ -25,6 +25,7 @@
  * virtualenv (version 1.10 or later)
  * xvfb
  * zlib1g-dev
+ * firefox or iceweasel
 
 == Setting up ==