IE8 is being detected as IE 6

By admin - Last updated: Wednesday, May 13, 2009 - Save & Share - 2 Comments

I logged in facebook with newly installed IE8, and on top of the page, it displays “Please Read This”, my first thought was that facebook is going to announce something important like they did for new theme a while ago.
Interestingly, it asks me to upgrade to IE7 since IE8 was recognized as IE6.

Check this out


The User-Agent info sent by IE8 is what I found in the HTTP request header.

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; GTB6; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30618; .NET CLR 1.1.4322; InfoPath.2)

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2 Responses to “IE8 is being detected as IE 6”

Comment from William
Time April 12, 2010 at 5:00 pm

Same problem here … also get redirected to some mobile version of sites incorrectly (i.e. going to, I get redirected to


Comment from Trish
Time May 5, 2010 at 9:55 am

Same here! Guess it may be time to start using Firefox only from now on – what else can I do?

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