This will open a new page with all the permissions for the current website which you were on.
Then change the ‘Flash’ option to ‘Allow’, but if you don’t see the flash option click on the ‘Site Settings’ option.
Or if you just want to unblock the flash player on a particular website, then click on the lock symbol beside the URL address in the address bar.
If the flash player was blocked on a website, then after changing this setting, go back and refresh this page and you will be able to view the flash content.
After you change this option to ‘Ask First’, Chrome will not automatically lock the flash player anymore on websites and Chrome will ask you the user for permission when you open a website which has flash content present in it.
Then slide the option ‘Block sites from running Flash (recommended)’ to ‘Ask First’.
Open the Chrome settings page by opening the following link your browser – chrome://settings/content/flash.