diff -r 000000000000 -r 6474c204b198 testing/mozbase/mozprofile/tests/files/prefs_with_comments.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing/mozbase/mozprofile/tests/files/prefs_with_comments.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+# A leading comment
+user_pref("browser.startup.homepage", "http://planet.mozilla.org"); # A trailing comment
+user_pref("zoom.minPercent", 30);
+// Another leading comment
+user_pref("zoom.maxPercent", 300); // Another trailing comment
+user_pref("webgl.verbose", "false");