On Linux (Fedora 17 x86-64), Chrome keeps reporting "Adobe Flash Player was blocked because it is out of date." every time I browse a page that contains Flash. How to fix this?
I did this and it turned to be working for me:
Install the latest flash player from adobe:
$ rpm -qa | grep flash
Delete the plugins in ~/.mozilla/plugins. I am not sure whether this matters really. But after I did these 3 steps, Chrome turns to be working again.