Change your default web browser quickly and easily from within Alfred.
Simple yet effective, this workflow enablea you to easily change your default browser. The official repository is located on Github --> https://github.com/stuartcryan/defaultbrowser-alfred-workflow where any issues can be logged on the issue tracker. I have also put this workflow on Packal.
Update Version 1.2 released September 10, 2015:
What has changed:
Feature: Support additional browsers - added FirefoxDevelo