OK, to make it slightly easier to install the latest 32bit flashplayer 18.104.22.168 for Firefox, I’ve uploaded the file you need to my dropbox.
Open a terminal… you can do this by hitting Alt+F2, then typing terminal, then clicking “Run”
When the terminal opens, enter these 5 commands (hitting enter after each one)
Create a ~/.mozilla/plugins directory
(this command may fail if the directory already exists… this is normal… just move on to the next command)
Change directory to ~/.mozilla/plugins :
Use wget to download the flashplayer archive:
Extract the libflashplayer.so file from the flashplayer achive:
tar -zxvf flashplayer11-32bit.tar.gz
Move the flashplayer archive back to your home folder to make it easier to delete if you wish:
mv -v flashplayer11-32bit.tar.gz ~/flashplayer11-32bit.tar.gz
You can now close the terminal.
Now close ALL running instances of Firefox, then reopen it… then go to this website:
where you can check which version of flashplayer you are currently using.
If that link says you are using a version older than 22.214.171.124… see below.
You may have to (in Firefox) go to Tools>Add-Ons>Plugins and make sure the only “Shockwave Flash” plugin that is enabled is the 11.0r1 one… and restart Firefox.
Once done, you can delete the flashplayer11-32bit.tar.gz file from your home directory, if you wish.