What is your operating system?
Can you provide a screenshot of that message?
My operating system is Windows 7. The message that keeps popping up is – “This webpage wants to run the following add-on: ‘Adobe Flash Player from ‘Adobe Systems Incorporated.’” I click on “Allow” and it goes away for a while, but pops up later.
This is caused by the Security setting of your browser. Change it, or allow specific sites to run Flash Player without prompts.