This tip happens to be my favorite Firefox tip/tool. With it, you can run many instances of Firefox with different Profiles and different Firefox versions at the same time.
The benefits:
- Run test and beta versions of Firefox without affecting your
- default Firefox configuration,
- Use different Profiles for different users without having to shutdown Firefox
- Test new extensions and themes in a new Profile beforeincorporating them into your default Firefox Profile other uses which you’ll discover as you use this tip.
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