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User Agent String explained :

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FirefoxFirefox 3.0.9
MozillaMozillaProductSlice. Claims to be a Mozilla based user agent, which is only true for Gecko browsers like Firefox and Netscape. For all other user agents it means 'Mozilla-compatible'. In modern browsers, this is only used for historical reasons. It has no real meaning anymore
5.0Mozilla version
Windows Platform
U Security values:
  • N for no security
  • U for strong security
  • I for weak security
Windows NT 5.1Operating System:
icon Windows XP
skLanguage Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface)
sk = SlovakSlovak
rv:1.9.0.9 CVS Branch Tag
The version of Gecko being used in the browser
Gecko Gecko engine inside
2009040821 Build Date:
the date the browser was built
FirefoxName :
Firefox
3.0.9Firefox version
 
First visit: 2009.04.22 09:08
Last visit:2018.07.29 02:27

All Firefox user agent strings



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