Detecting Firefox with request.servervariables("HTTP_USER_AGENT")

[Sharon]

Can I use request.servervariables("HTTP_USER_AGENT") to determine if the
user has Firefox or Internet Explorer? Is the return string differentiated
enough?

Thanks for any input.

 

[Adrienne]

Can I use request.servervariables("HTTP_USER_AGENT") to determine if
the user has Firefox or Internet Explorer? Is the return string
differentiated enough?

Thanks for any input.

Quite different.
For IE: Mozilla/4.0 (compatible; MSIE 6.0 ...) ...being other things the
UA might have.
For Firefox: Gecko/20050511 Firefox/1.0.4
For Opera as Mozilla: Mozilla/5.0 (...) Opera 8.0 ... being OS
For Opera as IE: Mozilla/4.0 (compatible; MSIE 6.0;...) Opera 8.0
For Opera as Opera: Opera/8.0 (...)

The real question is, why do you need the UA string? Try not to do too
much browser sniffing because A) browsers can lie, like Opera; B) the UA
string can change; C) there are a lot of browsers out there and its
insane to try to test for all of them.

 

[Dave Anderson]

Can I use request.servervariables("HTTP_USER_AGENT") to determine
if the user has...

No. I can direct my browser to send any UA string I want.



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