Choosy - Choosy opens links in different browsers as specified, according to rules, set by the user.
Finicky - A MacOS app for creating rules that decide which browser is opened for every link that would open...
Account Surfer - Quickly switch between accounts and browsers on Windows
Browser Fairy - One tool to rule them all Get virtually as many default web browsers as you want.
Browser Picker - A default browser replacement for windows to let you pick your preferred browser on the fly.
Switchbar - Open links in the right email clients, browsers or profiles