Rated 5 out of 5 stars

The sexiest UA addon, the only who change AppName, AppCodeName, Vendor, ...
Not just UserAgent like other.
About old UA list? Make your own thats not a problem. Dont know what to input? Google it

BIG and FRESH UA list:

PS yea it would be cool to always use a set string on a certain website or mask

This user has a previous review of this add-on.