Changes

The goal of this exercise is to expose you to Firefox extensions and to show you how to modify or extend the browser without changing it's source code directly. Some thought will also be given to the two methods of doing this (i.e., in the tree vs. as an extension), comparing their advantages and disadvantages.

As was [[Dive into Mozilla Modifying Firefox Lab#The_.27What.27:_change_the_way_new_tabs_get_created_in_Firefox|previously the case]], our goal is to modify Firefox so that new tabs are created (i.e. positioned) beside the current tab instead of being appended to the end of the list.