Browser TraySwitch is a filing tool. I answer my email according to areas of interest and I click links in them, so your program makes it easy for the right browser to open. I open links to Facebook, PhotoBucket, Randi Rhodes, Slate, Southern Rule, MySpace, et cetera in Flock. The tech forums like this one and WildersSecurity, BleepingComputer, Gizmos's TechSupportAlert, Computer Haven, et cetera in Firefox. All the other computers in the world are potentially in my office. BTS is a filing tool. Most folk don't know how to use tech, or which tech to use.
I mow my yard with a push mower, cut weeds with slingblade, grind coffee beans with manual grinder, carry a mobile phone to be socially responsible (average minute use a month, 30), carry one or two books when traveling because they only require my energy, and carry my browsers and office on usb drive. When I traveled with a laptop all I did with it until I got to my destination was play solitaire and read an ebook. So I carry three usb drives (one for office, one full of security and diagnostic apps, and the third for storage) and a deck of cards - and the couple of books. Your program is an essential part of a rational use of technology.
Your program is a good program. I feel it is necessary.