Install Flash Player 9 in Ubuntu
Preparing your system
First you need to install alien to convert .rpm to .deb package you can check here for complete details
First you need to download the .rpm file from here
Now you have flash-plugin-188.8.131.52-release.i386.rpm package convert this to .deb using the following command
sudo alien -k flash-plugin-184.108.40.206-release.i386.rpm
Outputlooks like below
Warning: Skipping conversion of scripts in package flash-plugin: postinst prerm
Warning: Use the --scripts parameter to include the scripts.
Now you need to install this .deb package using the following command
sudo dpkg -i flash-plugin_220.127.116.11-release-1_i386.deb
Selecting previously deselected package flash-plugin.
(Reading database ... 174973 files and directories currently installed.)
Unpacking flash-plugin (from flash-plugin_18.104.22.168-release-1_i386.deb) ...
Setting up flash-plugin (22.214.171.124-release-1) ...
This will complete the installation
Test Flash Player 9 Plugin
To check if Flash Player 9 is recognized by Firefox or not, open your Firefox and type in about:plugins.