Instalando o flash player no Firefox

Cara, durante a instalação ele pede um caminho para a instalação. Então eu coloco '/usr/lib/mozilla/plugins' e não aceita o caminho que eu digitei. O caminho é esse ou tem outro?

opa !!! eu refiz todos os passos, segue abaixo

skullcrusher@nihil:~/Área de Trabalho/install_flash_player_9_linux$ ls
flashplayer-installer libflashplayer.so
skullcrusher@nihil:~/Área de Trabalho/install_flash_player_9_linux$ chmod +x flashplayer-installer
skullcrusher@nihil:~/Área de Trabalho/install_flash_player_9_linux$ ./flashplayer-installer

Copyright(C) 2002-2006 Adobe Macromedia Software LLC. All rights reserved.

Adobe Flash Player 9 for Linux

Adobe Flash Player 9 will be installed on this machine.

You are running the Adobe Flash Player installer as a non-root user.
Adobe Flash Player 9 will be installed in your home directory.

Support is available at http://www.adobe.com/support/flashplayer/

To install Adobe Flash Player 9 now, press ENTER.

To cancel the installation at any time, press Control-C.



NOTE: Please exit any browsers you may have running.

Press ENTER to continue...





----------- Install Action Summary -----------

Adobe Flash Player 9 will be installed in the following directory:

Mozilla installation directory = /home/skullcrusher/.mozilla

Proceed with the installation? (y/n/q): y

NOTE: Please ask your administrator to remove the xpti.dat from the
components directory of the Mozilla or Netscape browser.


Installation complete.


Perform another installation? (y/n): n


Please log out of this session and log in for the changes to take effect.


The Adobe Flash Player installation is complete.

skullcrusher@nihil:~/Área de Trabalho/install_flash_player_9_linux$

depois disso testei e está fucionando , se não funcionar estou as ordens ..
inteeeeeeeeeeeh !!