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[tor-talk] Importance of individual useragent items

I noticed there are at least 2 different references in Torbrowser for useragent over ride strings.

The Panopticlick site picks up this one: "/Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Firefox/24.0/," though there's another shown in about:config: extensions.torbutton.useragent_override;Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20100101 Firefox/17.0.

Aside from the fact there are 2 strings shown in about:config, the string that Panopticlick detects shows Windows 7 (32 bit - I assume).

Several Windows usage by version sites show Win 7 64 bit as much more common. If true, why doesn't Torbrowser use that in its useragent?

The string in Torbrowser may be one of the most common setups? Some "useragent info" sites show 64 bit OSes are more common in the string. In my 1st visit to Panopticlick in a long time, using Torbrowser - it showed

Browser Characteristic:  User Agent
bits of identifying information:  6.73
one in x browsers have this value:  105.86
value: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Firefox/24.0

For the useragent string alone, 1 in 106 is pretty low.

A "test" for one of THE currently most common useragents shown on some updated lists of common useragents - in vanilla Fx: general.useragent.override; Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0

showed on Panopticlick that ~ 1 in 350 or 360 browsers had that useragent. Still not bad, but 3.5 x the estimate for Torbrowser's useragent. *That value could be skewed* by fewer or more Tor users visiting Panopticlick than Vanilla Fx users. Still interesting.

One statistics site, http://store.steampowered.com/hwsurvey/?platform=combined, shows Win 7 64 bit usage far exceeds the 32 bit, by 4.22 : 1. Note: must allow js for steampowered.com; to expand the statistics line items (shown below), must allow js for steamstatic.com. The values are for "usage" as of May 2014; Unsure where they get statistics. The +/- values are change in percentage, since??? Another "pretty" site, for all kinds of computer hardware / OSes / browser share, is http://marketshare.hitslink.com. I'm not affiliated w/ either site in any way.

Windows 7 64 bit
Windows 8.1 64 bit
Windows 7
Windows 8 64 bit
Windows XP 32 bit
Windows Vista 64 bit
Windows Vista 32 bit
Windows 8
Windows 8.1
Windows XP 64 bit

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