After visiting https://panopticlick.eff.org/, and seeing:
I would like to reduce my fingerprint. Just the USER AGENT string alone in Opera, combined with FreeBSD, makes me unique as 1 in over 2 million. I know the settings under opera:config for this, but regardless of what I choose, it still detects FreeBSD and Opera. And what is it about the HTTP_ACCEPT that is making me only 1 in nearly 400? Time Zone is just GMT. Can I kill the reporting of my Screen Size? I dislike being a 1 in 4.4 million fingerprint when I'm on the Internet.
Browser, Bits of ID, Unique as in 1/x User Agent 21.05, 2178474.5 [Mozilla/5.0 (X11; FreeBSD 9.2-RELEASE i386; rv:2.0 Gecko/20100101 Firefox/4.0 Opera 12.16] HTTP_ACCEPT Headers, 8.59, 385.5 [text/html, */* gzip, deflate en] Browser Plugin Details, 3.92, 15.17 [undefined] Time Zone, 5.12, 34.78  Screen Size and Color Depth, 5.99, 63.46 [1600x900x24] System Fonts, 2.59, 6.02 [No Flash or Java fonts detected Cookies Enabled, 0.43, 1.35 [Yes] Limited supercookie test, 0.91, 1.88 [DOM localStorage:Yes, DOM sessionStorage:Yes, IE userData: No] Your browser fingerprint appears to be unique among the 4,356,949 tested so far. Currently, we estimate that your browser has a fingerprint that conveys at least 22.05 bits of identifying information.