So that all OSs have the same Firefox version number. Something about the update server, I believe. You appear to already have Firefox 5.0.1 installed. See Finding your Firefox version

Thanks, SafeBrowser. I updated my XP to the latest FF after my Linux box prompted me to do the same.

I blindly installed FF 5.0.1 on both machines and then started wondering what's all about.

))

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Thanks

sure. I did it. Thanks for your support.

The long answer to explain why there are even 5.0.1 builds fro Windows and Linux on mozilla.com even though there are no updates or not actually needed.

http://christian.legnitto.com/blog/2011/07/12/why-are-there-no-firefox-5-0-1-and-3-6-19-automatic-updates-for-windows-and-linux/

Thanks, James.

I recall that Wordpress.org server was hacked a while ago and infected WP version was placed instead of the valid one for downloading.

So, just in the dark corner of my paranoid brain, having heard all those recent stories about high-profile military and others servers being exploited, came up a question: why there is no official announcement for Windows and Linux FF 5.0.1?

So I started sort of digging out.  :)

Thanks again for your support, James.