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19 Fixes! My YouTube Fullscreen Mode is not Working
Well on Desktop [2024] 💥

YouTube Fullscreen Mode is not Working Well on Desktop

Fix #1: Update Your Browser

One of the primary reasons for YouTube fullscreen glitches is an outdated browser. Keeping your browser updated not only ensures smooth compatibility with YouTube but also patches any known vulnerabilities and bugs. Visit your browser's official website or check its settings to update.

Keep It Updated, Keep It Smooth!


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Fix #2: Clear Browser Cache and Cookies

Cached data might interfere with YouTube's functionality. Regularly clearing cache and cookies can resolve these issues. Here's how you can clear cache on some popular browsers:

  1. Google Chrome: Go to Settings > Privacy and security > Clear browsing data.
  2. Firefox: Options > Privacy & Security > Cookies and Site Data > Clear Data.
  3. Safari: Preferences > Privacy > Manage Website Data > Remove All.

Fix #3: Disable Browser Extensions

Extensions can often interfere with YouTube's playback. Follow these steps to disable them:

  1. Open your browser and go to the extensions or add-ons page.
  2. Review the list of extensions you have installed.
  3. Disable each extension one by one, testing YouTube's fullscreen mode after each.
  4. If YouTube's fullscreen mode works correctly after disabling a specific extension, you've identified the culprit.
  5. Consider removing that extension entirely or checking if there's an update available.

Always remember, not all extensions play nice!

Fix #4: Check Flash Player

Even though YouTube now primarily uses HTML5, ensuring that your Adobe Flash Player is updated can help avoid fullscreen glitches. Visit Adobe's official website to check for updates.

Flash Forward with the Latest Updates!

Fix #5: Use a Different Browser

If YouTube's fullscreen mode isn't working on one browser, trying a different browser can help isolate the issue:

  • Chrome: A popular choice known for its speed and extensive extension library.
  • Firefox: Open-source and known for its customization options.
  • Edge: Microsoft's flagship browser integrated with Windows 10 and later.
  • Safari: Apple's default browser for macOS and iOS devices.
  • Opera: Known for its free VPN and ad-blocker.

When one door closes, another browser opens!

Fix #6: Check Your Computer's Graphics Drivers

Outdated or corrupted graphics drivers can affect video playback. Here's how you can check and update them:

  1. Right-click on the desktop and select 'Device Manager' or search for it in the start menu.
  2. Expand the 'Display adapters' section.
  3. Right-click on your graphics card and choose 'Update driver'.
  4. Select 'Search automatically for updated driver software'.
  5. If an update is found, allow it to install. If not, visit the manufacturer's website for manual updates.
  6. Restart your computer after updating the drivers.

Keep your drivers in the fast lane for smoother video playback!

Graphics drivers play a pivotal role in video playback and display settings. Regular updates ensure optimal performance.

Fix #7: Alter YouTube's Default Playback Settings

By visiting YouTube's Playback Settings, you can switch between HTML5 and Adobe Flash Player. Toggle the settings to see which one works best for you.

Fix #8: Adjust Your Screen Resolution

If YouTube isn't fitting correctly in fullscreen mode, adjusting your monitor's screen resolution might fix the issue. Try different resolutions to find the one that best matches YouTube's video dimensions.

Incorrect screen resolutions can lead to display issues not just on YouTube but across all applications. Ensure you're using the recommended settings for your monitor.

Fix #9: Ensure Two-Step Verification is Enabled

While this might not directly relate to fullscreen issues, ensuring your account's security can prevent potential disruptions. Enabling two-step verification adds an extra layer of protection to your YouTube account.

Fix #10: Toggle Hardware Acceleration

Hardware acceleration can be a blessing and a curse. While it generally improves performance, it might cause glitches in YouTube's fullscreen mode. Disabling it in your browser's settings can sometimes fix the problem.

While hardware acceleration enhances browsing speed, it's not always compatible with every website. Toggle it off if you're facing issues.

Fix #11: Reinstall Your Browser

Corrupt installations can lead to various issues, including problems with YouTube's fullscreen mode. Uninstalling and then reinstalling your browser can potentially resolve these issues.

Fix #12: Check for System Updates

Always ensure that your operating system is updated. Outdated systems might have compatibility issues with newer versions of browsers and YouTube itself. Regular system updates fix known bugs and vulnerabilities.

Fix #13: Reset Browser to Default Settings

Resetting your browser to its default settings can resolve any conflicts caused by changes in configurations or settings. However, this will revert all your personalized settings, so ensure you've backed up any important data.

Fix #14: Ensure Internet Stability

While this might seem unrelated, unstable internet connections can affect YouTube playback and its fullscreen functionality. Ensure you have a stable connection for optimal video streaming.

Fix #15: Visit the YouTube User Guide

For a deeper understanding of how YouTube functions, visiting the YouTube User Guide can provide clarity and possible solutions.

Fix #16: Check on Another Device

If you have access to another computer or device, check if YouTube's fullscreen mode works on it. This can help determine if the issue is with your device or your YouTube account.

Fix #17: YouTube Studio Settings

YouTube Studio offers advanced settings that can sometimes affect the playback of your videos. Ensure that there aren't any settings that restrict the playback of your video in fullscreen mode. If you're unfamiliar with the intricacies of YouTube Studio, consider visiting this guide on YouTube Studio for a clearer understanding.

Fix #18: Report the Problem to YouTube

If none of the solutions mentioned so far resolve the issue, it might be a bug specific to YouTube. In such a scenario, it's essential to report the problem directly to YouTube. This not only helps them identify potential glitches but also ensures they can work on a fix. The best way to report issues is through their report a problem link.

Fix #19: Consider a Temporary Alternative

While this might not be a permanent solution, sometimes using third-party apps or websites that offer YouTube video streaming can bypass the fullscreen issue. These platforms have distinct video players that might not be affected by the same glitches. However, always ensure that you're using trustworthy and safe platforms to avoid potential security risks.

When in Doubt, Seek Alternatives Out!


Experiencing issues with YouTube's fullscreen mode on desktop can be frustrating, especially when you're trying to enjoy content without any interruptions. The fixes mentioned above offer a comprehensive solution to address the majority of these issues. Always ensure that you're keeping your systems and software updated, as many glitches are often resolved with the latest patches and updates. If the problem persists, reaching out to YouTube's support can offer specialized assistance. And always remember to prioritize your security by using trusted sources and enabling two-step verification.


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