can not run firefox 4 rc 1 on ubuntu maverick 64 bit

[steros]

Binary package hint: firefox

./firefox-bin
./firefox-bin: error while loading shared libraries: libxul.so: cannot open shared object file: No such file or directory

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: firefox 3.6.15+build1+nobinonly-0ubuntu0.10.10.1
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Thu Mar 10 19:45:30 2011
FirefoxPackages:
 firefox 3.6.15+build1+nobinonly-0ubuntu0.10.10.1
 firefox-gnome-support 3.6.15+build1+nobinonly-0ubuntu0.10.10.1
 firefox-branding 3.6.15+build1+nobinonly-0ubuntu0.10.10.1
 abroswer N/A
 abrowser-branding N/A
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: firefox

[Micah Gersten (micahg)]

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. For help on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs#When%20not%20to%20file%20a%20bug. There is also a vibrant support community available at http://askubuntu.com and you might consider asking your question there.

[Algimantas Margevičius (gymka)]

you need launch not "firefox-bin", but "firefox". in my case:
sh ~/Downloads/firefox/firefox