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    Video Repair

    How to Solve The HTML5 Video ‘File Not Found’ Error

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      Summary: Are you unable to watch videos on Vimeo, YouTube, or other websites due to the ‘HTML5 Video File Not Found‘ error? It could be a web page backend issue or your browser does not support HTML5 videos. This post shares how best you can tackle the HTML5 video error problem and make your videos playable again in any browser.

      What is a HTML5 video file?

      What is a HTML5 video file?

      HTML5 is an enhanced version of HTML (HyperText Markup Language). As the next level to HTML, HTML5 has incorporated video and audio specifications, which now allow users to watch videos online without any plugins. The webmasters need to use special HTML5 coding and include WebM, MP4, and OGG formats on their web pages. Before HTML5 videos were only played using the Flash Player.

      You can view HTML5 videos on all popular browsers such as Google Chrome, Internet Explorer, Mozilla Firefox, and Safari.

      What is HTML5 Video “File not Found” Error?

      If you encountered an “HTML5 video not found” error while playing a video on any website then it implies your browser doesn’t support the HTML5 format codecs or your browser doesn’t have the proper video codec installed.

      Why do you get an ‘HTML5 Video File Not Found’ error?

      There are could be multiple reasons that could be held responsible to get an ‘HTML5 Video File Not Found’ error –

      1. Website Issue –
        HTML5 video error occurs when you try to watch a video embedded on a web page. It is mostly a website backend issue and is fixed by the webmaster or the developer of the site.
      2. Browser’s Issue –
        However, sometimes the problem could also be the browser. Below mentioned are there scenarios related to the browser –
      • The browser in which you are trying to view the video may not support HTML5 format codecs. You can check this, by playing videos on multiple browsers.
      • If you are able to watch the web page video in other browsers, it is the HTML5 compatibility problem with a particular browser. For example, a web page video may not open in Firefox and throw an HTML5 video error. However, in Chrome it may play perfectly.
      • The possibility is also that the browser’s cache and cookies do not let the web page videos play. You can confirm this if the video plays fine in the new Incognito window.

      Thus, there are various reasons why the ‘HTML5 video not found’ error occurs.

      Also read Error Solved: 5 Common Video Errors

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      How to fix the ‘HTML5 Video: File Not Found’ error

      There are various ways to fix HTML5 video errors. We suggest you follow the order given here while troubleshooting – from simpler to complex solutions.

      5 Ways to solve ‘HTML5 Video File Not Found’ error

      1. Update your browser
      2. Remove cookies and cache
      3. Toggle hardware acceleration
      4. Start the browser in Safe Mode
      5. Download supporting codecs

      Method 1 – Update your browser

      Not all web browsers support HTML5 videos. Ensure you are using an updated version of the browser.

      Below are the popular browser versions that support HTML5

      ElementBelow are the popular browser versions that support HTML5 - Google ChromeBelow are the popular browser versions that support HTML5 - Internet ExplorerBelow are the popular browser versions that support HTML5 - Mozilla FirefoxBelow are the popular browser versions that support HTML5 - SafariBelow are the popular browser versions that support HTML5 - Opera
      <HTML5 video>Google ChromeInternet ExplorerMozilla FirefoxSafariOpera
       Version 25 partially supportsVersion 9 and 11Version 2 to 20 partially supportsVersion 3.1 to 6 partially supportsVersion 10.1 to 12.1 partially supports
       Version 56 and above completely supports Version 49 and above completely supportsVersion 9 and above completely supportsVersions 34 and above completely support

      To check if you’re using an updated version of Chrome do the following:

      1. Open Google Chrome and click on the three vertical dots in the top-right corner
      2. Click Help > About Google Chrome
      3. If you see an option Update Google Chrome, click on it. If not, your Google Chrome is updated

      Similarly, you may check and update other browsers too.

      Method 2 – Remove cookies and cache

      Clearing the cache and cookies in the browser helps most of the time. Although cache and cookies stored in a browser’s directory serve to provide a better user experience, sometimes it leads to errors while playing multimedia files. Try to view the video again after deleting the cache, cookies, and browser history.

      In Google Chrome, you can do the following to delete cache and cookies:

      • Open Chrome and click on the three vertical dots on the top right
      • Click to follow Settings > Advanced > Privacy and security > Clear browsing data
      In Google Chrome delete cache and cookies
      • Choose and tick the checkboxes: Browsing history, Download history, Cookies, and other site data, and Cached image and files
      Tick the checkboxes to clear all cache data
      • To clear the entire cache, select All time in the time range dropdown
      • Click Clear data

      Now restart your computer and try to play video in your browser.

      For steps to remove cache and cookies in other web browsers, visit: Read More

      Method 3 – Toggle hardware acceleration

      Hardware acceleration helps in opening graphics-intensive media like games and videos etc., in the browser.

      When you turn off the hardware acceleration in a browser, only your computer’s GPU (Graphics Processing Unit) will be used to process all the graphics-intensive media. This lowers the load on the browser and may fix the HTML5 video errors.

      In Google Chrome, you can disable hardware acceleration by following the below steps:

      • Click on the three dots in the right corner of Google Chrome
      • Click to follow Settings > Advanced > System
      Click on 'System' under 'Settings' in Chrome
      • Toggle off the Use hardware acceleration when available option.
      Toggle-off the 'Use hardware acceleration when available '
      • Now Restart Chrome

      Now try to your videos in the browser. It should not give an ‘HTML5: Video file not found’ error.

      You can disable hardware acceleration for other browsers too in their setting.

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      Method 4 – Start the browser in Safe Mode

      Starting the browser in Safe Mode usually resolves many problems. Safe Mode may not fix the HTML5 issue, but you may know the cause of the problem and find a solution.

      So what happens to the browser in Safe Mode?

      • In Safe Mode hardware acceleration is automatically turned-off
      • A few settings are reset
      • All add-ons, plugins, etc., are disabled

      If the video plays without any error or interruption in Safe Mode, it means any of these settings in your browser could be creating the problem. You can change those settings or disable the plugins or extensions that are creating the HTML5 video error.

      Method 5 – Download HTML5 supporting codecs

      An ‘HTML5: Video file not found’ error indicates either the browser you are using doesn’t support HTML5 or the webpage doesn’t have the proper video codec.

      You may contact the website’s developer to install HTML5 supporting codecs for all three WebM, MP4, and OGG formats.

      In case you are an Internet user who witnesses this error, then ensure using the updated browser that supports HTML5. Further, if the error persists, try the other ways given in this post to fix the issue.

      Is the Video not Playing in Firefox or Chrome?

      What worked for some, might work for you too!

      Here are a couple of solutions, which various users found helpful when their HTML5 videos didn’t play in any browser.

      Is video not playing in Firefox or Chrome ?

       ‘I had HTML5 videos that would not play in Firefox. I was using an updated browser and removed cache and cookies too, but no help.

      What I did: What worked for me was updating my video drivers. I have the NVIDIA GTS 240 driver on my computer. Downloaded and installed the latest one. Next, restart the computer and now Chrome 38.0.2125.77 started playing HTML5 videos again on YouTube, Vimeo, and others.

      Is your video corrupt? Repair it with Ultimate Video Repair Tool 

      Video RepairVideo Repair Mac

      When the local video files saved in the hard drive, SD card, USB flash drive etc., are broken, not playing, or showing any error while opening, it indicates a corrupt file. To fix such not playing or error generating videos use Stellar Repair for Video — an efficient tool to fix any sort of video corruption including blurry, grainy, stuttering, black screen, no sound or out-of-sync videos.

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      About The Author

      Sumona Chatterjee linkdin

      Sumona is a tech blogger, avid photographer, & technogeek with vast experience in writing about media file recovery tips and tutorials. She has over 10 years of experience in media file recovery/media file repair technology. She is passionate about Photography, Creative Designing, Music, and Exploring lesser-known destinations.


        1. Hi Peter,
          Thanks for appreciating the efforts of our writers who do thorough research for ways of resolving such errors like recovering lost calendar data on an iPhone. It gives us immense pleasure when we are able to eradicate these issues for our readers. So keep supporting us by visiting and recommending our blogs/articles.

      1. These are, in fact, enormous ideas regarding blogging. You have touched on some good factors here. Anyway, keep up writing.

        1. Hi Scotty, Thanks for appreciating our editorial teams’ efforts to showcase such real scenarios where each of us gets stuck at times. We are happy to be of help to you.
          Stay tuned for more updates.

      2. Since this website’s writers are working, there is no uncertainty that it will soon be renowned due to its feature contents.

        1. Hi Serena,
          Thanks for appreciating our editorial teams’ efforts to showcase such real scenarios where each of us gets stuck at times. We are happy to be of help to you.
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        1. Hi Doris,
          We appreciate your genuine views on our published content. We believe in the serenity of our work to come up with solutions that our users face nowadays in there day to day life. Stay tuned for new updates.
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      3. Hi, I had got error code: 224003 from any video on IMDB when using Chrome but they play fine using Edge or Firefox, it just happen after chrome update. Any suggestion would be appreciated!

        1. Hi Francesca,
          This error 224003 is a online video playback error. May be your browser doesn’t support the IMDB video file type. Ensure browser is updated. Also try to play again after removing cookies and cache. Turn off any adblockers or extensions in browser. Else, play videos in another browser.

      4. It’s happen to me couple of days ago when YouTube videos not playing in Firefox and any other browser. I update all windows PC but still didn’t found what the issue was. I seems your blog on Google and follow the steps and upgrade the graphics drivers to use hardware acceleration and It solved my problem. Thank you!

      5. I had the same problem too. I solved it with the help of your blog using step 5 changing the setting after that I speed up the video. Thanks!

      6. I cannot play the videos on YouTube due to enable show error “video unavailable”. I googling and I found your blog and solutions of the given problem. It’s really helpful for me. Thank you very much!

      7. Hi, I had the same issue with my Firefox, I’m using windows 10 and when I play video on YouTube through Firefox error message shows html5 video “file not found”. What should I do? Any suggestion would be appreciated.

        1. Hi Warren, I suggest you can update Windows to a newer version, for example, from Windows 10 Version 1803 to Windows 10 Version 1809, you’ll need to re-download and install the Media Feature Pack even though you installed it for the previous Windows version.

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