A promising idea for a simple application; sadly, once downloaded and installed, it didn't find my other browser, Chromium; but did find Firefox.
Also, the developer's page for the application only seems to provide a download and no contact information (that's why I am commenting here).
If you could add in the functionality to add additional browsers (like Chromium) this would be much appreciated.
If the above is done, I will update my comment accordingly.