Troubleshooting Guide: How Do I Fix YouTube Not Full Screen Issue

YouTube is undoubtedly one of the most popular video-sharing platforms, providing users with an impressive array of content. However, like any other tech platform, it is not without its flaws. One common issue that YouTube users may encounter is the inability to view videos in full screen mode. If you have ever faced this frustrating problem, fear not, as this troubleshooting guide will walk you through various possible solutions to fix the YouTube not full screen issue, ensuring that you can enjoy your favorite videos without any hindrance.

Basic Troubleshooting Steps For YouTube Not Full-screen Issue

If you’re facing issues with YouTube not going full screen, there are several basic troubleshooting steps you can follow to resolve the problem.

Firstly, try refreshing the webpage or restarting your device. Sometimes, a simple restart can fix the issue.

Next, check your internet connection. A poor internet connection can prevent YouTube from going full screen. Ensure that you have a stable and fast internet connection for a smooth YouTube experience.

Clearing your browser’s cache and cookies can also help resolve the issue. These temporary files can sometimes interfere with YouTube’s functionality. Go to your browser settings and find the option to clear cache and cookies. Restart your browser and try playing YouTube videos again.

Disable any browser extensions or add-ons that may be affecting YouTube’s full screen mode. Some extensions can interfere with the website’s functionality, so it’s good to rule that out.

Lastly, make sure that your browser and graphics driver are up to date. Outdated software can cause compatibility issues with YouTube. Check for updates and install them if available.

By following these basic troubleshooting steps, you should be able to fix the YouTube not full screen issue. However, if the problem persists, there are further steps you can take to resolve it.

Check Device And Browser Compatibility For YouTube Full-screen

When experiencing issues with YouTube not going full-screen, it is essential to ensure that both your device and browser are compatible with this feature. Begin by confirming that your device meets the minimum system requirements for playing videos on YouTube. Check if your device supports HTML5, as YouTube primarily utilizes this technology for video playback. Older devices may not be compatible and may encounter problems when trying to go full-screen.

Next, make sure that your web browser is up to date. Outdated versions of browsers might not be optimized for YouTube’s full-screen mode, leading to issues. Additionally, different browsers may have varying levels of compatibility with YouTube, so it is advisable to try an alternative browser if you are still encountering problems.

It is worth mentioning that the “Incognito” or “Private” browsing mode may cause conflicts with YouTube’s full-screen feature. If you are using this mode, try disabling it and check if the issue persists.

By checking the compatibility of your device and browser, you can eliminate potential factors causing the YouTube not full-screen issue and ensure a smooth viewing experience.

Clear Cache And Cookies To Resolve YouTube Full-screen Problem

Clearing cache and cookies can often resolve issues related to YouTube not going full screen. These files can accumulate over time and cause conflicts with the website’s functionality. Here are the steps to clear cache and cookies in different browsers:

1. Google Chrome: Go to the menu (three vertical dots) on the top right corner, select “More tools,” then “Clear browsing data.” Choose the time range and select “Cached images and files” and “Cookies and other site data.” Click “Clear data.”

2. Mozilla Firefox: Click on the menu (three horizontal lines) on the top right corner, select “Options,” then “Privacy & Security” from the sidebar. Scroll down to the “Cookies and Site Data” section and click on “Clear Data.” Make sure to check “Cookies and Site Data” and “Cached Web Content,” then click “Clear.”

3. Microsoft Edge: Click on the menu (three horizontal dots) on the top right corner, select “Settings,” then “Cookies and site permissions” from the sidebar. Under the “Clear browsing data” section, click on “Choose what to clear.” Check “Cookies and other site data” and “Cached images and files,” then click “Clear.”

Clearing cache and cookies may sign you out of websites and remove some personalized settings, but it can often resolve full-screen issues on YouTube.

Disable Browser Extensions And Add-ons Affecting YouTube Full-screen

When experiencing issues with YouTube not going fullscreen, it’s essential to consider if any browser extensions or add-ons are causing the problem. These can sometimes interfere with the fullscreen functionality and prevent videos from expanding to their maximum size.

To troubleshoot this issue, start by disabling all extensions and add-ons installed on your browser. Go to the settings or preferences section of your browser and look for the extensions or add-ons tab. Disable each one by one, and after disabling each, try playing a video on YouTube in fullscreen mode to see if the issue is resolved.

If disabling all extensions and add-ons fixes the problem, you can start enabling them one by one to identify which one was causing the fullscreen issue. Once identified, you may either remove or update that specific extension or add-on to ensure compatibility with YouTube and prevent any similar issues in the future.

Remember to also periodically check for updates for your browser and extensions to ensure they are running on the latest versions, as outdated versions can sometimes lead to conflicts with fullscreen functionality.

Update Browser And Graphics Driver To Fix YouTube Full-screen Issue

When encountering the YouTube not full-screen issue, one of the potential culprits could be outdated browser or graphics drivers. Outdated software can often lead to compatibility issues, causing various problems, including the inability to view videos in full-screen mode on YouTube.

To resolve this issue, it is recommended to update both your browser and graphics drivers to their latest versions. First, check for any available updates for your browser. Most browsers have an automatic update feature that can be enabled in the settings. If not, manually visit the browser’s official website and download the latest version.

Next, focus on updating your graphics driver. Visit the manufacturer’s website, whether it’s NVIDIA, AMD, or Intel, and locate the appropriate driver for your graphics card model and operating system. Download and install the latest driver version.

After updating both the browser and graphics drivers, restart your computer and try playing a YouTube video in full-screen mode again. This should eliminate any compatibility issues and allow you to enjoy an immersive viewing experience on YouTube.

Adjust Display Settings For Full-screen Viewing On YouTube

Adjusting display settings can help resolve the issue of YouTube not going full screen. Here are a few steps to follow:

1. Right-click on your desktop and select “Display settings” (for Windows) or go to the Apple menu and choose “System Preferences,” then select “Displays” (for macOS).
2. Ensure that the screen resolution is set to the recommended or native resolution of your monitor. This can be found under the “Display resolution” settings.
3. Check if the scaling or zoom settings are affecting the display. Set it to 100% or to the default setting.
4. Disable any display enhancements, such as Night Light or Night Shift mode, as these can sometimes interfere with full-screen playback.
5. Additionally, check if your monitor’s aspect ratio is set correctly. Most monitors have a 16:9 ratio, so ensure it is set accordingly.
6. Restart your computer and relaunch YouTube to see if the issue persists.

By adjusting these display settings, you should be able to resolve the full-screen issue on YouTube. If the problem persists, you can try the other troubleshooting steps mentioned in this article or seek assistance from YouTube Support.

Seek Assistance From YouTube Support For Persistent Full-screen Problems

If you have tried all the troubleshooting steps mentioned above and still cannot fix the full-screen issue on YouTube, it may be time to seek assistance from YouTube Support. YouTube provides a comprehensive support system to help users with their platform-related problems.

To reach out to YouTube Support, you can visit the YouTube Help Center and search for relevant articles and FAQs related to the full-screen problem you are facing. YouTube has an extensive knowledge base that covers various issues and their solutions. It is worth exploring this resource as it may provide you with step-by-step instructions to resolve your full-screen problem.

If you cannot find a suitable solution through the Help Center, you can also contact YouTube Support directly. There are several ways to get in touch with them, such as through email, social media platforms like Twitter, or even their official community forum. YouTube Support representatives are usually prompt and helpful in addressing user queries and issues.

Remember, seeking assistance from YouTube Support should be your last resort if all other troubleshooting steps have failed. They will be able to provide expert guidance and personalized solutions for your persistent full-screen problem on YouTube.


1. Why is YouTube not going full screen on my device?

There could be several reasons why YouTube is not going full screen on your device. It could be due to a browser or app issue, a problem with your internet connection, outdated software, or a conflict with extensions or plugins.

2. How can I fix the YouTube not full screen issue on my browser?

To fix the YouTube not full screen issue on your browser, you can try clearing your browser cache and cookies, disabling extensions or plugins, updating your browser to the latest version, or trying a different browser altogether. Additionally, make sure that your display settings are properly configured and that your internet connection is stable.

3. What can I do if the YouTube app is not going full screen on my mobile device?

If the YouTube app is not going full screen on your mobile device, first, check if you have the latest version of the app installed. If not, update it from your device’s app store. Additionally, try restarting your device, clearing the app cache, or reinstalling the YouTube app. You can also check if there are any system updates available for your device and install them.

4. Why does YouTube not go full screen when I connect my device to an external display?

If YouTube does not go full screen when you connect your device to an external display, ensure that the display settings on both your device and the external display are properly configured. Make sure the display resolution is set correctly and that the display mode is set to extend or duplicate instead of mirroring. Additionally, check if there are any software updates available for your device and install them, as they can often resolve compatibility issues.

Final Thoughts

In conclusion, the troubleshooting guide provided valuable insights and effective solutions to resolve the issue of YouTube not being able to go to full screen mode. By following the step-by-step instructions and implementing the suggested remedies, users should be able to overcome this frustrating issue and enjoy an uninterrupted full-screen viewing experience on YouTube. Whether it involves updating browser settings, disabling extensions, or clearing cache and cookies, this guide offers practical solutions for users to troubleshoot and fix the YouTube not full-screen issue.

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