I built a small utility that handles multiple browser instances for you
I'm a consultant and I normally deal with multiple clients. I need an isolated browser for each to maintain my sanity. I could create separate profiles in Chrome and Firefox but the main issue is when you click on a link outside of the browser (e.g. in your IDE), in which profile should it be opened? I wrote a Python script that redirects URLs to the correct browser instance and set it as my default browser. Over time, the script has grown and become essential to my work. I cleaned it up and open-sourced it. Hope that someone else may find it useful too!
In plain words
This utility manages multiple isolated browser instances for users who need to keep work separated across different contexts. Built by a consultant handling multiple clients, it routes URLs from external applications like IDEs to the correct browser profile automatically by acting as the system's default browser. The Python script solves the problem of deciding which profile should open a clicked link, making it useful for anyone requiring browser isolation without manual switching.
written from the facts on this page · September 2026
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