Fix the Error: HTML5 Video File Not Found!

Fix the Error: HTML5 Video File Not Found

If you face the error HTML video file not found or your browser did not play the video and show message video file not found html5 then don’t worry we will guide you in this article to solve the html5 video not found error.

Wondershare Recoverit Authors

Nov 23, 2020 • Filed to: Photo/Video/Audio Solutions • Proven solutions


When you want to play a video but it’s not loaded and gives the error HTML5 video file not found. It affects your mode and you trying to find its reason. So, it could be the browser backend error or your browser does not support the HTML5 videos. But it can be raised a question in your mind that what browser supports HTML5 video?

Don’t worry about the HTML5 not found error, this article helps you to solve the browser error. As well as answer why HTML5 video not playing on Firefox and Opera shows error HTML5 video not playing, also describe ways to recover/repair videos. In the end, tell you some tips about HTML5 MOV videos that assist you to handle the HTML5 videos.

Part 1. Overview of “HTML5 Video File Not Found” Error

In this part, we will give you the introduction of the HTML5 video file and explain the term HTML5 not found. Also, describe the causes of facing the error HTML5 video not found.

1. What is an HTML5 video file?

The HTML5 video is an advanced video element for playing the videos on the web browser. It is a new standard method to implanted a video on a web page because the older way of playing video on the web using Adobe Flash plugin is very annoying and difficult. It is supported by all browsers and helps to control video playback with its control attributes like autoplay, stops pause, volume, etc. What does HTML5 video not found mean?

For playing the videos on web browsers there is a new type of video element designed that is HTML5. So, if you see the message “HTML5 video not found” while playing a video on a web page then it means your browser doesn’t support the HTML5 format codecs or missed some video codecs.

It is also meaning that there is an issue on the backend of the website and the browser cannot redirect the path of the video or you have an older version of the browser and video cannot support the flash player type so it shows the error “HTML5 video not found”.

2. What causes “HTML5 video not found”

There are different causes of occurring the error “HTML5 video not found”.

The backend issue of the Website: It is an issue related to the code of the website. Sometimes a code glitch occurs, due to the video file can’t be accessed so, it can be fixed by the developer or the webmaster.

Browser support of HTML5: This issue occurs due to browser support of HTML5 format. The older versions of browsers are not supported the HTML5 formats or sometimes the browser did not support the HTML5 codecs. So, some people have face this issue because they did not update their browsers.

Browser Compatibility: This error can be happened due to compatibility issues with some specific browsers. Like a video is not playing in chrome and gives the HTML5 video error but its playing in Firefox flawlessly.

Videos with older content: It occurs when a user request of playing an older video that supports the flash player but didn’t support the HTML5 format.

Cookies & Caches: Occasionally the cookies and caches create problems for webpages to stop playing videos because some websites cookies have malicious bugs. So, you check it by an open web page in Incognito mode.

So, there are several reasons for occurring the “HTML5 video not found” error.

Part 2. How to Solve “HTML5 Video File Not Found”?

In this part, we will tell you the different techniques step by step to solve the error “HTML5 video file not found”. So, follow the beneath techniques to solve the HTML5 video file issue.

1- Use Latest Browser Version

All versions of browsers do not support the HTML5 videos, so, confirm that your browser is updated or not. Sometimes browsers are auto-updated but when you face the HTML5 issue you should check it manually.

To check the updates of your Chrome browser, follow the below steps;

Step 1: Start Google Chrome and tap on the three dots on the right top corner.

Open Chrome setting menu

Step 2: From the listed menu, tap on Help then click on About Google Chrome.

Open about of Chrome

Step 3: If your browser is not updated then it will show an option “Update Google Chrome”, click on it. If it is not shown then your browser is up to date.

Check for update

2- Erase Caches and Cookies

Caches and cookies are the temporary storage that storage a small chunk of data about the user to help the browser to work fast. They get storage with time and sometimes cause a slow browsing problem or gives an error when you want to play video files. So, delete the caches and cookies if you face the HTML5 video not found an error, and after that try view again that video.

Step 1: Start Google Chrome and tap on the three dots on the right top corner.

Open Chrome setting menu

Step 2: From the listed menu, Click on Settings

Open Chrome settings

Step 3: Settings will be open, now click on “Advanced” from the left listed menu, then “Privacy and security” click on “Clear Browsing Data”.

Clear Browsing data

Step 4: Now a small window will be open, click on the “Advanced” tab and choose what you want to delete and click on “Clear Data”. If you want to delete data from the last day or last week or all time, you will choose this from the “Time Range”.

Choose caches & cookies for deleting

During the removal process of caches and cookies, be cautious to avoid important data loss. Once it happens, learn how to recover deleted videos.

3- Turn-off Hardware Acceleration

In the browser, hardware acceleration aids it in graphics-intensive media that includes videos and games. If you toggle off the hardware acceleration, all load of loading the graphic-intensive media on your computer’s Graphics Processing Unit (GPU). That’s why the loading of videos in the browser being slow and maybe HTML5 video error will be fixed.

To toggle-off the hardware acceleration please follow the below steps;

Step 1: Start Google Chrome and tap on the three dots on the right top corner. Now click on settings.

Step 2: Now click on the “Advanced” from the left listed menu. Under the advanced settings click on the “System” and now you see the option “Use hardware acceleration when available”, toggle it off.

4- Use Safe Mode to Start Browser

Safe Mode is the best option to examine the issue of browser and also some solve some basic issues but not fix the HTML5 issue. With safe mode, you can identify the issues of browser that can help you to solve them quickly. So, if the video plays well in safe mode and did not show any interruption then it means your browser settings are due to some websites or the extension and plugins are cased the interruption in playing HTML5 video.

  • Safe Mode automatically turned-off the hardware acceleration option.
  • Safe Mode reset some settings.
  • Safe Mode disabled all the plugins and add-ons.

5- 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.

So, you should communicate with the developer to solve the issue and install all the required codecs.

Part 3. How to Recover and Repair Video File

Video files are different from any other type of data. Sometimes, you might find the video corruption after the preview using the Recoverit tool. Don't worry from now on. If so, Recoverit reminds and works for you with launching a new feature that is an advanced video recovery function. It scans, gathers, and matches the fragments of your corrupt videos. It adds some portion of the same video by adding as a sample file. Used the information from the working sample files and repairs the corrupted files. It also repairs data headers that are corrupted. Thus, ensures most of your videos are recovered So, the recovery and repair rate of Recoverit Data Recovery is improved but it takes more time for the deep scan.

In this part, we will describe to you how to recover and repair corrupted video file with the help of Recoverit Video Repair.

Video file is the best way to entertain someone or save your precious memories. Sometimes, video files become corrupted and showing the error message when you try to play. Videos files will be corrupted due to some different reasons; sometimes a virus or malware corrupts it or it will be corrupted due to unusual turn-off windows during playing a video so, in both ways, it is difficult to repair it.

To repair corrupted video files with the advanced feature of Recoverit Data Recovery, please follow the beneath steps.

Step 1: Add Corrupted Videos

Start the Recoverit Repair tool on your computer. At this point, add the corrupted file through clicking on the "Add" button or "Add video and start repairing". Now the dropped video takes some time to upload on software, wait for the video to upload.


Step 2: Quick Repairing

After uploading click on the “Repair” button and wait for repairs.


Step 3: Save Videos

After repairing the steps, the whole process is almost completed. It is available to preview the repaired video. You can save the repaired video to the pointed position and name the folder. This makes it easy and fast to find the repaired video. Just carry simple steps to save the repaired video.


Advance Repair-add sample video (optional)

If the repaired video not working then use the “Advanced Repair” option. It will ask you to add a sample file. (A Sample File is a working file created from the same device and of the same format as the corrupted file.)


Part 4. Tips for HTML5 Video Files

Videos are an essential part of today's websites because it makes them attractive and expressive. With the help of HTML5, the videos are smoothly playing on web pages. Videos are used to advertise different things on websites because this way the information is more effective and easily understand. However, videos can slow the websites if the size of a video very large and take time to load. So, preventing this issue you can create videos by using HTML5 and follow the bellow helpful tips.

  • You should know the target device where your video will be played.
  • Before making the actual video, make a prototype, and assess the suitable size then making the original is very easy.
  • Control and measure the size of the video during making it, so, you can avoid the compression process.
  • During the making process of video, check the quality settings of the video because high-quality settings videos take more space and large.
  • Also, check on the format of videos because some browsers are not supported by all types of video formats.
  • The video attributes like height, width is very imported, set them in the code as it is.
  • Choose a good and reliable video hosting website, try to use the paid version rather than the free version.

With the help of HTML5, now watching videos on web pages is very easy. But sometimes, Developer makes mistakes during embedded the videos in web pages that cause the HTML5 video file not found an error. So, you can check the ways that describe above to identify the issue and use Recoverit Video Repair to recover corrupted videos. The video fixer will never let you down, as it can realize the repair of different video issues and different formats of media files.

Recoverit author

Eleanor Reed

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