Error after upgrate Ubuntu 10.04,help me!!!

[kdich]

I'm newer in linux.I using Ubuntu 10.04.Today,I want to upgrate my firefox 3.6 up to 6.0.
I done as following link :http://mygeekopinions.blogspot.com/2011/08/how-to-install-firefox-6-in-ubuntu-1010.html#comment-form .
But when I restart my system.it's very error.For example,keyboard can't use.My disks (320G format NTFS form.and I install Ubuntu and Windows 7 together) don't mount because so I can't access them.System report for me error : ...don't mount.Formerly,my Wlan and wireless is normally operation,but don't use,now.etc...
I can use Firefox 3.6 but can't lose my current Ubuntu,because I have very much important application.

Help me!!!](*,)

[dino99]

sudo synaptic

search (installed packages) firefox, select each package for downgrading (from menu: file -> force version)

[kdich]

Thanks for reply.But I don't understand what you say.Can you clearly tell me ?

[ottosykora]

dino99: as far as I understand he can not boot properly, no keyboard etc, so he has no linux, he might need to fix that first

send him to the boot repair utility first?

[ottosykora]

@kdich

it is not so sure what are you trying to describe , if you are not able to boot at all then the boot repair disk can help you
http://ubuntuforums.org/showthread.php?t=1769482

but if you can boot , but some functions are missing, how far do you exactly come when trying to boot your computer? Have you ubuntu only or more operating systems?
Can you reach the logon screen?