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 User Agent Switcher by 艾杯
Rated 5 out of 5 stars
it does a good job in most sites ,except the one "m.taobao.com/channel/act/mobile/h5/10nian.html".and chrome works normally with "F12" .it's hard to express express what i mean with my poor english.= =
To create your own collections, you must have a Mozilla Add-ons account.