firefoz 35.0.1 would not update shockwave by clicking update button

Add-on manager page for Shockwave Flash states that shockwave flash 16.0 r0 is vulnerable and blocked. Update Now button is highlighted. When update button is clicked it displays https://blocklist.addons.mozilla.org/en-US/firefox/blocked/p178 this page and shockwave flash remains not useable. I have update the windows 7 adobe flash player with no effect. Same scenario happens when I try to update VLC web plugin. Thank you for help in advance. -Said