How to Solve The HTML5 Video ‘File Not Found’ Error (2024)

What is a HTML5 video file?

How to Solve The HTML5 Video ‘File Not Found’ Error (1)

HTML5is an enhanced version ofHTML (HyperText Markup Language). As the next level to HTML, HTML5 has incorporated video and audiospecifications, 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

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

ElementHow to Solve The HTML5 Video ‘File Not Found’ Error (3)How to Solve The HTML5 Video ‘File Not Found’ Error (4)How to Solve The HTML5 Video ‘File Not Found’ Error (5)How to Solve The HTML5 Video ‘File Not Found’ Error (6)How to Solve The HTML5 Video ‘File Not Found’ Error (7)
<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 supportsVersion 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. ClickHelp > 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
  • Clickto follow Settings > Advanced > Privacy and security > Clear browsing data
How to Solve The HTML5 Video ‘File Not Found’ Error (8)
  • Choose and tick the checkboxes: Browsing history, Download history, Cookies, and other site data, and Cached image and files
How to Solve The HTML5 Video ‘File Not Found’ Error (9)
  • To clear the entire cache, select All time in the time range dropdown
  • ClickClear 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
How to Solve The HTML5 Video ‘File Not Found’ Error (10)
  • Toggle off theUse hardware acceleration when availableoption.
How to Solve The HTML5 Video ‘File Not Found’ Error (11)
  • 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.

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.

How to Solve The HTML5 Video ‘File Not Found’ Error (13)

‘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

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

How to Solve The HTML5 Video ‘File Not Found’ Error (18)

Sumona Chatterjee How to Solve The HTML5 Video ‘File Not Found’ Error (19)

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.

How to Solve The HTML5 Video ‘File Not Found’ Error (2024)

FAQs

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

Download the Supporting Codecs of HTML5

If your browser error "HTML5 video file not found", it means that your browser is not up to date or website pages does not have a suitable video codec. It would help if you communicated with the developer to solve the issue and install all the required codecs.

How to solve HTML5 video file not found? ›

Download the Supporting Codecs of HTML5

If your browser error "HTML5 video file not found", it means that your browser is not up to date or website pages does not have a suitable video codec. It would help if you communicated with the developer to solve the issue and install all the required codecs.

How to fix Error code in html5_video 4? ›

If you encounter an "Error code: html5_video:4" on your embedded player, it is most likely related to your pre-roll video. Below are some ways to fix this. Check that the pre-roll video that you have been using is still in the dashboard. To do this, go to media uploads and click on the pre-event video section.

How do I fix HTML5 video not encoded? ›

How do I make my browser support HTML5?
  1. Update your browser. Click the Menu button in the top right corner and select Help. ...
  2. Delete cookies and cache. Click on More icon, next select More tools. ...
  3. Disable add-ons. Click the three dots icon in the top right corner. ...
  4. Add plugins to support your browser. ...
  5. Modify the video link.
Jun 28, 2024

What is the Error code for HTML file not found? ›

The HTTP 404 Not Found client error response status code indicates that the server cannot find the requested resource. Links that lead to a 404 page are often called broken or dead links and can be subject to link rot.

How do I get rid of HTML5 error? ›

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.
Jun 12, 2024

How do I fix a file not found in HTML? ›

First, make sure that the file is in the same folder as the HTML. If the file is in another folder, you will need to provide the relative path from your HTML file to the image. Make sure that the file type is supported by the browser (e.g. supported types include PNG, JPEG, and GIF).

How to run HTML5 in Chrome? ›

You don't need to enable it. Google Chrome automatically accept it. HTML5 is latest version of HTML language which is supported by most of web browser including Chrome. I suggest you to update the Chrome browser to latest version so it can understand and execute the code of HTML5.

Which browser supports HTML5? ›

HTML5 is supported by all the major browsers, including Chrome, Firefox, Safari, Opera, as well as iOS for Chrome and Safari and Android browsers. It can even work with the older and less popular browsers like Internet Explorer.

Which video type supports HTML5? ›

Presently, there are three video formats supported by the video element which are MP4, WebM and Ogg.

How do I find HTML code error? ›

How to Check for HTML errors?
  1. Use Online Validators. Utilize online HTML validators, such as the W3C Markup Validation Service. ...
  2. Browser Developer Tools. ...
  3. Integrated Development Environment (IDE) Linters. ...
  4. Online Code Editors. ...
  5. Browser Extensions. ...
  6. Command-Line Tools. ...
  7. Editor Configurations. ...
  8. Markup Analysis Tools.
Dec 12, 2023

What to do if HTML code is not working? ›

Use the most recent version of your web browser. For the best experience, use Chrome. In Internet Explorer, Microsoft Edge and Opera Mini, the HTML preview will sometimes break when the embed changes. If this happens, refresh the page to see your changes or switch to another browser.

Why is my HTML file not opening? ›

If you are unable to open an HTML file, it is possible that the file may be corrupted or the file extension is incorrect. It is important to make sure that the file is saved with the proper file extension, which should be ". html" or ". htm".

How to insert HTML5 video? ›

To embed a video in an HTML document, use the <video> tag inside the body of the document.

What video file does HTML5 support? ›

Use the right video format and codec combination: HTML5 supports MP4 (H. 264), WebM (VP8/VP9), and Ogg (Theora) natively.

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