Here's how it is, this category lists all Wikipedians who are interested in the TV Show Firefly, in an effort to help us collaborate on Firefly-related articles.

You have several template choices for your userpage to automatically add you to this category:

((User:EVula/Userboxes/Firefly))

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FIRE

This user is a fan of Firefly.

((User:EVula/Userboxes/Firefly fan))

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ﬁreﬂy

This user thinks Firefly is the greatest television series ever made.

((User:EVula/Userboxes/Firefly browncoat))

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ﬁreﬂy

This user is a Browncoat.