MacBook Air
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/600.3.18 (KHTML, like Gecko) Version/8.0.3 Safari/600.3.18
screen resolution: 1440×900
Puffin browser user agent v2.3.4 (7141)
Mozilla/5.0 (iPod; U; CPU iPhone OS 5_1_1 like Mac OS X; en-US) AppleWebKit/534.35 (KHTML, like Gecko) Chrome/11.0.696.65 Safari/534.35 Puffin/2.0.7193 Mobile
iPhone 4 iOS 5.1.1 Safari
Mozilla/5.0 (iPhone; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3
iPod Touch 4th gen iOS 5.1.1 Safari
Mozilla/5.0 (iPod; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3
various
Mozilla/5.0 (iPad; CPU OS 6_1_3 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10B329 Safari/8536.25
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:21.0) Gecko/20100101 Firefox/21.0
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
parts
App Name: Netscape
App Version: 5.0 (Windows)
App Codename: Mozilla
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
Platform: Win32
an example
2. Restart Firefox and go to Tools>Default User Agent>Edit User Agents...
3. Then click New>New User Agent...
4. Write in this :
4a. Description : Mozilla Firefox 5.0.1
4b. User Agent : Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.20) Gecko/20081217 Firefox/5.0.1 (.NET CLR 3.5.30729)
4c. App Code Name : Mozilla
4d. App Name : Netscape
4e. App Version : 5.0.1 (Windows; en-US)
4f. Platform : Win32
4g. Vendor : Mozilla
5. Leave Vendor Sub blank.
6. Click OK and then OK again.
7. Now click Tools>Default User Agent>Mozilla Firefox 5.0.1
8. Open 2nd window of Firefox and do the same as in step 7