EneyProactive AI for Mac. Free test, 20,000 credits.
Promoted
Choosy can prompt you to select from the browsers on your Mac, or just the ones that are running, so you can decide which browser is right for a particular link.
Hunter
I use this all day ever day, in conjunction with Fluid.app to launch almost every webapp I use more than twice a week in its own "app."
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Very useful since I went back to using Firefox and Firefox Developper Edition instead of Chrome with multiple profiles. Rules rule !
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