Flash Player 11 For Ubuntu Linux Download Flash Player 11 Linux.x86 64.tar.gz Link

sudo chmod 644 /usr/lib/mozilla/plugins/libflashplayer.so Modern Alternatives

Flash has critical unpatched security flaws. sudo chmod 644 /usr/lib/mozilla/plugins/libflashplayer

Adobe no longer provides security patches or support. The Legacy of Flash on Linux sudo chmod 644 /usr/lib/mozilla/plugins/libflashplayer