.SH NAME

Mozilla
.rj
Sun May 17 15:51:50 BST 2015

.SH DESCRIPTION

In order to enable execution of "javascript:" URLs in the address bar. 
Go to about:config and change the below setting to false:
'nf
browser.urlbar.filter.javascript false
'fi

You can test it by typing "javascript:alert('test')" in the URL address bar.