After closing Firfox and Opera, then using Synaptic to remove
flashplugin-nonfreefrom my system and Cleaning up My Ubuntu Box, I followed the installation instructions given by Adobe.
Firefox wanted to update itself as soon as I removed
flashplugin-nonfree, but I held off on doing that until I had the new plugin installed. After extracting
~/.mozilla/pluginsI allowed Firefox to update via Ubuntus automatic updates, then started Firefox up and the Flash Player worked like a charm.
Opera didn't want to work right at first however. For some reason Opera wasn't aware of my
~/.mozilla/pluginsdirectory as being a plugins directory so I had to add that directory to my plugins path in Opera.
~/.mozilla/pluginsto my plugins path was simple enough.
Tools > Preferences > Advanced > Content > Plugins Options > Change Path
~/.mozilla/pluginsto the list of folders and restarting Opera the Flash Player was working properly.