On 04/27/2011 04:36 PM, Jay O'Brien wrote:
> On 4/27/2011 3:27 PM, NoOp wrote:
...
>> http://seamonkey.ilias.ca/browserfaq/UAspoofing
>> http://www.rossde.com/internet/sniffing.html
>> 
>> I prefer PrefBar:
>> http://prefbar.tuxfamily.org/
>> http://prefbar.tuxfamily.org/help/use.html
>> http://prefbar.tuxfamily.org/help/use.html#editbuttons
>> http://prefbar.tuxfamily.org/help/buttons.html#useragent
>> 
>> You can easily modify the useragent to:
>> Mozilla/5.0 (X11; Linux i686; rv:2.0pre) Gecko/20110406 NOT
>> Firefox/4.0pre SeaMonkey/2.1b3pre
>> or
>> Mozilla/5.0 (Windows NT 5.2; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
>> 
>> I just tested and both work using:
>> http://us.mg.mail.yahoo.com/neo/launch
>> 
>> PrefBar|Customize|right-click on UserAgent and select 'Edit' scroll down
>> to the Firefox (or any other you wish to modify instead) and copy & past
>> the UI above (all one line) into the 'Value' section. Modify the label
>> so that you recognize what you've done. Click OK & Close. On PrefBar
>> select 'User Agent|<your modifed UA>' and ensure that it has been
>> modified by 'Help|About SeaMonkey' and you should see the modified UI
>> following 'Build identifier'
>> 
>> Keep in mind that PrefBar will revert back to your original UA on
>> SeaMonkey shutdown/start, so you'll need to tick the UA that you want
>> when start your session or go to that website.
>> _______________________________________________
> 
> NoOp, That is extremely useful, thank you. I will review the links you 
> sent in more detail.
> 
> Is there an easy way to determine what user agent I am sending? I suspect 
> my XP computers and my Win7 64bit computers send different user agent 
> strings.
> 
> Jay

I see that you are currently using:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US;
        rv:1.9.1.18) Gecko/20110320 SeaMonkey/2.0.13

But to answer your question; yes... "'Help|About SeaMonkey' and you
should see the modified UI following 'Build identifier'"

Note that in my last I was actually using
Mozilla/5.0 (Windows NT 5.2; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
from PrefBar (Ctrl-U on that msg will show you the headers). But I
posted from a linux machine using SeaMonkey 2.1b3:
Build identifier: Mozilla/5.0 (X11; Linux i686; rv:2.0pre)
Gecko/20110406 Firefox/4.0pre SeaMonkey/2.1b3pre

Now if I change using the PrefBar UA and check 'Help|About SeaMonkey':
Build identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.3)
Gecko/20090824 Firefox/3.5.3
and change again:
Build identifier: Mozilla/5.0 (X11; Linux i686; rv:2.0pre)
Gecko/20110406 NOT Firefox/4.0pre SeaMonkey/2.1b3pre
and again:
Build identifier: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.9.0.9)
Gecko/2009041723 Firefox/3.0.9
and now I'm back to my real UA:
Build identifier: Mozilla/5.0 (X11; Linux i686; rv:2.0pre)
Gecko/20110406 Firefox/4.0pre SeaMonkey/2.1b3pre

Typical UA strings:
https://developer.mozilla.org/en/Gecko_user_agent_string_reference
http://hacks.mozilla.org/2010/09/final-user-agent-string-for-firefox-4/
http://en.wikipedia.org/wiki/User_agent

The issue that you will have with spoofing (also see David E. Ross's
page) is that some sites actually will activate javascript, active-x
controls, or of late HTML5 code. In those cases where your browser
doesn't support the code, then you may get in, but those "features" will
fail. So simply because you've spoofed the site into accepting your
spoofed browswer UA, don't expect that all things with work magically
(or at all).

More info here:
<https://developer.mozilla.org/en/Browser_Detection_and_Cross_Browser_Support>
<https://developer.mozilla.org/en/Gecko_Compatibility_Handbook>
<https://developer.mozilla.org/en/Using_Web_Standards_in_your_Web_Pages>
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