User:Vesper/labs/addtabbeside extension ver
Fixing an old problem in a new way
The mission was to have new tabs spawn beside the active tab again, but this time we're making the change with an extension, rather than changing the source code directly. Writing extensions are a great way of sharing a new feature that is unlikely to be accepted into trunk.
The lab can be found here: Dive_into_Mozilla_Modifying_Firefox_using_an_Extension_Lab