

Make sure there is no remnant of any other previous Flash player. Visit about:plugins and verify that the version of Flash is something like Shockwave Flash 10.0 d20. The result is that these people would end up using some old buggy version of nspluginwrapper which might be the cause of Firefox crashes! When you backup, use cp -a, so symbolic links remain symbolic links. The effect of this is sometimes there is an actual file called instead of a symbolic link. A common issue with people who migrate their profiles is to perform a simply copy of the profile. Check that in ~/.mozilla/plugins/ there is no dormant file with the name.The command is cp libflashplayer.so ~/.mozilla/plugins/ If you want just the current user to try out the Flash player, copy the libflashplayer.so file to /home/yourUSERNAME/.mozilla/plugins/.The command is sudo cp libflashplayer.so /usr/lib/mozilla/plugins/ If you want all users in your system to have this alpha version of Adobe Flash Player 10 for Linux, copy the libflashplayer.so file to /usr/lib/mozilla/plugins/.You will get a libflashplayer.so file, which is about 10MB is size. Download the alpha version of the 64-bit Adobe Flash Player 10 for Linux and extract the file from the archive.Uninstall the flashplugin-nonfree package using your package manager, or simply running sudo apt-get remove flashplugin-nonfree.If flashplugin-nonfree has been updated, stop reading now. So you need to have a look in your package manager and the package description in case flashplugin-nonfree has already been updated. After some time, I expect that the flashplugin-nonfree will stop using nspluginwrapper and will simply install Adobe Flash Player 10 (64-bit) for Linux.First, we understand that the flashplugin-nonfree package that is currently available to those with 64-bit Ubuntu Linux, installs the 32-bit version of Flash and uses the nspluginwrapper tool to make it work.Original post: So you just read the announcement from Adobe for the alpha version of the 64-bit Flash Player 10 for Linux and you want to install in Ubuntu Linux? Sudo apt-get install flash plugin 64-installer Sudo add-apt-repository ppa:sevenmachines/flash Sudo apt-get remove flashplugin-nonfree flashplugin-installer See Tools→Addons→Plugins to verify the version. The latest Flash 64-bit for Linux is 10.2 d1161. Update : The package name changed to ‘flashplugin64-installer’. Uninstall flashplugin-nonfree, add the new PPA repository with sudo add-apt-repository ppa:sevenmachines/flash and then install flash plugin 64-installer.

Update : There is a repository for Flash 64bit at Though I have not tried this, I suggest to give it a try.
