Firefox 3 on an unknown distribution Linux!
userAgent Mozilla/5.0 (X11; U; Linux x86_64; en; rv:1.9.0.6) Gecko/20080528 Epiphany/2.22 Firefox/3.0
I don't think you're gonna be able to get the distribution name out of that... a problem with Epiphany I guess.
Right, same with Konqueror. Fortunately, web access logs on kegel.com show that an overwhelming majority of visitors do specify the distro; the first entry that doesn't (Konqueror) is only #14 and accounts for a small percentage. And even then we won't break, we'll just show the current download page.
69 Mozilla/5.0 (compatible; Konqueror/4.2; Linux) KHTML/4.2.0 (like Gecko)" 72 Mozilla/5.0 (X11; U; Linux i686; de; Gecko Ubuntu/8.10 (intrepid) Firefox/3.0.6" 73 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko Ubuntu/8.10 (intrepid) Firefox/3.0.3" 74 Mozilla/5.0 (X11; U; Linux x86_64; en-US; Gecko Ubuntu/8.04 (hardy) Firefox/3.0.6" 75 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko Fedora/3.0.6-1.fc10 Firefox/3.0.6" 78 Mozilla/5.0 (X11; U; Linux i686; zh-CN; Gecko Ubuntu/8.10 (intrepid) Firefox/3.0.6" 81 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko Iceweasel/2.0.0.19 (Debian-2.0.0.19-0etch1)" 87 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko GranParadiso/3.0.6" 114 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko Gentoo Firefox/3.0.5" 138 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko Mandriva/1.9.0.5-0.1mdv2009.0 (2009.0) Firefox/3.0.5" 150 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko GranParadiso/3.0.5" 229 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko Ubuntu/8.04 (hardy) Firefox/3.0.6" 254 Mozilla/5.0 (X11; U; Linux x86_64; en-US; Gecko Ubuntu/8.10 (intrepid) Firefox/3.0.6" 832 Mozilla/5.0 (X11; U; Linux i686; en-US; Gecko Ubuntu/8.10 (intrepid) Firefox/3.0.6"