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Thanks to another question of mine here on Superuser, I was pointed in the direction of XULRunner, which allows me to run Chatzilla without making having to install the addon for firefox:

Which has the obvious benefit that I no longer face the problem that when I close Firefox, chatzilla closes too.

I'm wondering, are there more programs that run on XULRunner, that you use? Tell me about them.

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Community wiki? – Sasha Chedygov Oct 7 '09 at 6:04
up vote 3 down vote accepted

A long but not complete list of applications on xulrunner can be found here

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All Mozilla applications use XULRunner including Firefox, Thunderbird, Seamonkey, Sunbird. Some other popular applications are Songbird, Miro and Joost

There's a game based on XUL called Simon the Sorcerer 4: Chaos Happens

XUL based applications are cross-platform. The drawback being some of them might be slow on performance esp. start-up time can be a bit longer.

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Yeah, but to run Chatzilla, I had to use the XULrunner.exe program to make it stand-alone. – KdgDev Oct 7 '09 at 14:59

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