To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for RefControl by wwwhm
Rated 5 out of 5 stars
Very nice.
I would like to see it handling User-Agent: in the same way.
To create your own collections, you must have a Mozilla Add-ons account.