There are a few things you can do to try and fix the issue:

  • Make sure that your computer is up to date with the latest software. Adobe Flash Player is usually updated every month.
  • Disable any ad blockers or security software that may be interfering with the flash player.
  • Try using a different browser on your computer, like Safari or Firefox.
  • If all of these steps fail, you may need to reinstall Adobe Flash Player on your Mac. ..

YouTube no longer uses flash, so users no longer experience issues. However, many other sites still use flash, so the steps below can help resolve issues on those sites. ..

1. Uninstall and Reinstall Adobe Flash Player (make sure you are installing the latest version)

This may fix the flash video issue and it may not, but it’s worth a shot. Start by jumping to the official Adobe website and downloading the flash Player uninstaller for OS X. Launch the uninstaller and simply uninstall Flash Player from your Mac and restart the computer.

Adobe.com is where you can download the latest version of Flash Player, and if YouTube videos are working, you can watch them.

2. Enable Flash in Chrome/Safari

In Chrome, click on the three dots at the top right and click on Settings. Scroll down and click on Advanced to expand it. Under Privacy & Security, click on Content Settings.

Scroll down to Flash and then toggle the control so that it says Ask First (recommended).

If you have already installed Flash for Safari, but it’s not working, you may need to enable the plugin first. To do this, open Safari and then click on Preferences. ..

If you’re using Adobe Flash Player, make sure to check it out and download the latest version.

You can enable or disable Flash on a site by site basis.

3. Reset Safari, Firefox, Chrome and Clear Cache

If Flash Player is not working properly, you may want to try clearing your browser’s cache, exiting the browser, and restarting. Some people have reported that videos will work properly upon clearing cache.

In Chrome, you can click on the three dots, then click on More Tools and choose Clear Browsing Data. Make sure to check Cached images and files and then click the Clear Data button.

4. Enable Javascript and Disable Popup Blocker

Flash content can be blocked by extensions, so if you have one that’s preventing Flash from running, you’ll need to disable it. You’ll also need to make sure JavaScript is enabled in your browser. ..

You can try disabling the popup blocker for the particular site you are having issues on. Disabling the popup blocker completely may make your computer less secure. ..

5. Disable Flash hardware acceleration.

Fixing YouTube Videos That Won’t Play Correctly If you’re having trouble watching a YouTube video and it won’t play correctly, there are a few things you can do to try and fix the issue. First, right-click the video area on the screen and select the Flash Player Settings option. Unselect the Enable hardware acceleration option and click the Close button. This will disable any acceleration that may be happening on your computer, which may help with some videos not playing correctly. If that doesn’t work, you can try restarting your computer or downloading a new version of Flash Player. ..

If you are not seeing the right-click content menu, you may need to install Flash Player. If you don’t see the Flash logo, that means Flash is not installed properly. ..

Close out of the browser completely, relaunch it and test the Flash content again to see if it plays. ..

6. Check HTML 5 YouTube Settings

YouTube now supports HTML 5 fully, as long as you are running a fairly recent version of your browser. All the features should be fully supported too.

If you visit this URL, you will see check marks for all the different HTML 5 features. If something is not checked, that means your browser is not up to date and needs to be updated.

If you’re having trouble with your Mac’s video playback, this post may help. Blanks or non-working Flash apps can be frustrating, so hopefully this guide can help you out. If you have any other tips, please share in the comments! ..