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|User since||December 7, 2010|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Firefile has lots of potential but I don't think it's currently a fully working solution. Especially if you want to edit the CSS file of a WordPress site.
The main issue with using it on a WordPress site is it's going to strip your stylesheet header and your theme isn't goiing to work after that.
For any site there is a good chance it's going to strip all your comments.
Another thing it's going to do which can really mess with your stylesheet is strip all your !important declarations.
So use with care!