Haveeru website doesn't properly show the user comments, in Firefox.I suppose the web master has no time to clean up his code or probably they don't care.
Some use IE Tab extension in Windows to browse the site and for Linux users theres Opera..
Anyways here is my solution for the problem, which gets rid of loading an external browser.
1) Install Greasemonkey extension for Firefox
2)Install Haveeru userscript / Haveeru userscript (Windows)
2)Install Haveeru userscript / Haveeru userscript ( Linux )
Greasemonkey user script.
(thanks to bandey for the webspace)