On chrome, if you go to
chrome://flags/#Enable-Ephemeral-Flash-Permissions
and set it to "disabled"... Chrome won't keep asking permission to use flash.
They announced this in the Admin updates a while ago, but I wasn't sure how many people knew about it. So I thought I'd post here. Cheers.
The Newbie Supporting and Training Guild
The NSTG's mission is to provide a safe and educational environment for the fostering of newbies to productive Gaians.