The current latest stable version is Firefox 5. Its requirements are only available at http://www.mozilla.com/en-US/firefox/5.0beta/system-requirements/ Actual: http://www.mozilla.com/en-US/firefox/system-requirements.html lists requirements for Firefox 4. Expected: for Firefox 5.
Good catch! Anthony - Do we still use this page? If so, the version number should be removed from the button and the headline. http://www.mozilla.com/en-US/firefox/system-requirements.html
I guess this is a question for Christian. I think we shouldn't have a versionless URL for system-requirements since they are tied to Firefox versions, like release notes.
It's actually at http://www.mozilla.com/en-US/firefox/5.0/system-requirements/ as well...I just need to update the .htaccess redirect. I'll do it today, thanks!
Fixed in r91718
Pushed live in r91730.