All browsers say flash is not installed when it is installed

So I got away around it, i realised flash was not enabled for the website i was trying to access. I was actually running a bigbluebutton installation and encountered this when i tried accessing mydomain/check from the brower.

Type this in the address bar chrome://settings/content/all and search for the website that is giving you the issues. then click to open the permissions. then allow the flash option .

Issued solvedd 

All browsers block Flash by default and browser vendor changes in recent browser versions are making it more difficult for the browser to detect the Flash content and prompt the user to allow Flash in the browser.

You don't indicate if you've tried the recommendations at the following:

• Why do I have to click to activate plugins? | Firefox Help
• Use or fix Flash audio & video - Computer - Google Chrome Help
• Enable Flash Player for Opera

If you haven't, please try those.  If it's still not working, please provide the exact link to the content that isn't working and I can attempt to troubleshoot further.

For more information on browser changes with regards to Flash see:

• Plugin Roadmap for Firefox - Plugins | MDN
  • In this roadmap, Mozilla states the following will happen in 2019 "Firefox will disable the Flash plugin by default. Users will not be prompted to enable Flash, but it will still be possible to activate Flash on certain sites using browser settings"  Not sure if this has been implemented yet or not.
• Flash Roadmap - The Chromium Projects
  • The next big change in how Chrome handles Flash will be in Chrome 76, scheduled for July 2019.  Per Google, in Chrome 76 "Flash will be disabled by default, but can be enabled in Settings at which point explicit permission is still required for each site when the browser is restarted."  This change will "Require affirmative user choice to run Flash Player."

Essentially, if Flash Player installed successfully (meaning no errors and install time), and Flash content isn't display, the issue is going to lie with the browser (blocking Flash), and/or with the content not confirming to the various Flash detection changes implemented by the browser vendor.

<edit: formatting>

I know exactly what's happening. I run into this a lot with web sites that are still using Flash (and really should get on the ball, but haven't!).

I do this in Chrome, and you can probably do it in all browsers. You can allow Flash by enabling it in your browser for certain sites.

Enter chrome://settings/content in your address bar.

Go to the Flash section, and change it from "Block sites.." to "Ask first."

Now, when you go to your site, you'll see the "missing" area asking you to install Flash, but if you CLICK IT ONCE, you'll get a Chrome notification that asks if you want to allow it to run, and you can click the ALLOW button.

Problem solved. Good luck!