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[Updated] YouTube Error: YouTube Not Downloading/Working on Mac Fixed

Q: - Last night I updated Yosemite to 10.10.1 and now all of a sudden Safari Version 8.0 won't play any YouTube videos. All I get is a black screen with a little audio clipping. When using Firefox (v32.1.1) or Chrome (v38.0.2125.122) everything works ok. Any thoughts?
- I have a MacBook and recently the YouTube audio has stopped working. I can still see the video, but I can't hear it. iTunes and everything else works perfectly with audio.

Posts concerning on YouTube not working on Mac pervade at Apple Support Communities and Google forums. An overwhelming number of Mac users, especially those running on Big Sur, are beset with various YouTube errors, covering videos won't play, no sound on YouTube, black screen error, YouTube won't work on Safari, etc. This help center including all the troubleshooting steps and a feasible video downloader will help you out of all the possible the YouTube errors on Mac (macOS Big Sur and earlier). Keep reading on.

Important news: Recently, users on forum complained about the YouTube videos not downloading, with errors such as the site is unsupported and more. But you can try MacX YouTube downloader - the only one solution to fix the issue here.

A Once-and-for-all Free Solution to All YouTube Not Working Errors

Resorting to the internet for the answers can be one way to solve the single YouTube issue. But it can be much favored if there is a once-and-for-all solution to tackle all problems with YouTube. To this end, MacX YouTube Downloader is a 100% free program available to free download online videos, movies, music videos, funny clips, etc, in various resolutions ranging from 8K UHD, 4K 4096p, 19080/720p HD to 360p SD. It saves the downloaded videos in MP4, WebM, FLV and 3GP without worrying about the intrusion of virus, ads, spyware or malware. Therefore, you can watch videos offline without issues.

Top 5 YouTube Not Working Errors among Mac Users

1. Adobe Flash Player Is Required for Video Playback

This is one of the most common problems among Mac users when playing YouTube videos. As long as they click for a video on YouTube, their Mac screen comes up with a dreaded suggestion - "The Adobe Flash Player is required for video playback, so get the latest flash player." How to ease the YouTube error with no splotchy color, black box, unplayable video, etc ? Below is the easy fix for the problem.

YouTube Adobe Flash player not working on Mac


Option 1. Check if you are opted into HTML5 trial using Safari. If so, Opt out of HTML5 to bring it back again on Mac with your Safari.
Option 2. Reset Safari, go to disk utilities and repair disk permissions.
Option 3. Click on the link "Get the latest flash player";
Download the Adobe Flash player on Mac OS X;
Agree to the terms and install Adobe Flash Player and click on Install;
Input your Mac name and password;
Close all Safari window before going on the installation;
Hit on Done button;
Restart to check if your YouTube works on Mac or not.

2. YouTube Videos Not Playing on Mac

From time to time, you may run into a YouTube playback issue on macOS, like video loading/buffering, choppy playback or YouTube videos not playing on your Mac computer. The explanations for the error partly lie in the browser, JavaScript, cache as well as source video quality. So what you can do to tackle the YouTube videos playback problem on your Mac? Just follow the tips given below.

YouTube videos not playing on Mac


Option 1. Clear your cache and cookies as well as your browsing history.
Option 2. Press F5 key or Command+R key to refresh your browser window.
Option 3. Upgrade to the latest version of your browser to end the YouTube video not working on Mac issue.
Option 4. Enable JavaScript by selecting Settings from the toolbar icon;
Click Show advanced settings;
Hit Content Settings button in the Privacy section;
Select Allow sites to run JavaScript in the JavaScript section;
Click OK to close the window and then refresh the browser.

3. YouTube on Mac Not Working with Safari

Most often the site does not work with Mac Safari all the sudden. The typical case is videos are not loading up or YouTube videos keep lagging when upgrading to Yosemite 10.10.1, confirmed by MacRumors. Whether you want to comment on a video or "Like" a video, you can do nothing but leaving the YouTube videos unplayable on your Mac. If you've tried various troubleshooting like clearing cookies/cache/ history, reinstall Adobe Flash but no luck, follow the tips to get through the problem.

YouTube not working on Mac Safari


Option 1. Restart Safari first.
Option 2. Opt out HTML5 to solve your "Safari will not play You Tube Videos".
Option 3. Go to disk utilities and repair disk permissions.
Option 4. Check if your safari has unwanted plugin that prevents YouTube loading videos automatically on Mac.

4. YouTube Black Screen on a Mac

Very often, Mac users receive the message "YouTube video won't play now" with black screen/box popping up. You may run across a few troubleshooting steps for the black screen YouTube players but find no one to fix the blank YouTube error. If so, the next two steps will get you on the way to watch YouTube videos without a black screen or displaying a black player.

YouTube black screen on Mac


Option 1. Navigate Finder-Applications to find Safari icon;
Right-click it and choose Get Info from the menu;
Click the check box next to Open in 32-bit Mode;
Close and exit out of Safari Info window;
Reset Safari to change Safari settings;
Then YouTube videos will start working on Mac and the blank player should be gone.

Option 2. Select Macintosh to uninstall Flash player;
Head on over to Adobe to download and reinstall its latest version.
Navigate Finder -> Application -> Utilities -> Disk Utility;
Select your hard drive and repair Disk permissions.

5. YouTube Video No Sound/Audio Problem

It is cat-and-mouse for Mac owners obsessed with YouTube videos but hear nothing. How can the audio just disappears from the video? Sometimes, this error happens because the YouTube video is embedded with copyrighted music. However, if you are encountering the same YouTube issue, here is a solution meant for the problem and then you can solve the YouTube video no sound/audio error.

YouTube no sound on Mac


Option 1. Go System Preferences -> Other/Flash Player -> Advanced -> Delete All. Reinstall Abode Flash Player.
Option 2. Check the volume on the player.
Option 3. Empty Caches.
Option 4. Upgrade Flash player.
Option 5. Reset Safari -> Uncheck the box next to "Remove saved names and passwords."

Download YouTube Videos on Mac to Get Rid of YouTube Issues

To be frank, you can download YouTube videos on Mac and play them without any error with the aid of MacX Video Converter for Mac (or MacX Video Converter for Windows version). It is a great program that lets you download YouTube videos on macOS (Big Sur) and Windows (10), thus helping you fix YouTube not working on Mac for good.

You can even convert the downloaded YouTube videos to iPhone, iPad, Samsung, HTC, Game consoles, Chromecast and another 1000+ mainstream devices without any fuss. All you need to do is to copy and paste the URL in the address bar, choose the resolution, format and file size you desire, choose the destination folder if you like to save the downloaded file and hit the Download Now button to start download. Just 4 steps, you can finish the YouTube download process as easy as possible.

Notice: MacXDVD Software doesn't advocate any reproduce, distribute, transmit, broadcast or sell any content for any other purposes without prior written permission of YouTube or the respective licensors of the content. Please refer to YouTube terms of service before doing so.