I got a new hard drive for my laptop and decided to make a leap of faith and move to 64-bit version of Ubuntu, since I had to install a fresh system anyway.
In case you didn’t know – Adobe doesn’t have stable Flash player version for 64-bit Linux. Adobe Labs offer preview release codenamed “Square” for 64-bit platforms. It can’t be installed via standard Ubuntu repositories, so get ready to get your hands dirty in the terminal.
To install 64-bit Flash player plugin do the following:
1. Download the latest version of the plugin at http://labs.adobe.com/downloads/flashplayer10_square.html (currently it is v.10.2 preview 3 from November 30th, 2010)
2. Go to your downloads directory and extract the plugin binary
tar xvzf flashplayer10_2_p3_64bit_linux_111710.tar.gz
3. Create a directory for browser plugins in your users home directory
mkdir -p ~/.mozilla/plugins
4. Move extracted in step 2 Flash player plugin binary to its new location
mv libflashplayer.so ~/.mozilla/plugins
5. Close all browser windows and restart the browser.
6. In Firefox or Chrome go to about:plugins to verify that there’s Shockwave Flash plugin available