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, this article will help you to solve the html5 video not found error.

Wondershare Recoverit Authors

Jan 28, 2021 • Filed to: Photo/Video/Audio Solutions • Proven solutions

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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 are 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 an 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 in handling the HTML5 videos.

Part 1. Overview of "HTML5 Video File Not Found" Error

In this part, we will introduce 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 the Adobe Flash plugin is very annoying and difficult. It is supported by all browsers and helps 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. If you see the message “HTML5 video not found” while playing a video on a web page, it means your browser doesn’t support the HTML5 format codecs or missed some video codecs.

It also means 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 the video cannot support the flash player type. Hence, 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, 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 it's playing in Firefox flawlessly.

Videos with older content: It occurs when a user requests 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"?

This part 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 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 stores a small chunk of data about the user to help the browser work fast. They get storage with time and sometimes cause a slow browsing problem or 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 to view that video again.

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, 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. Suppose 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 the 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," 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 browser issue, and some solve some basic issues but not fix the HTML5 issue. With safe mode, you can identify the browser issues that can help you solve them quickly. So, if the video played well in safe mode and did not show any interruption, it means your browser settings are due to some websites, or the extension and plugins have caused 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.

It would help if you communicated with the developer to solve the issue and install all the required codecs.


Part 3. How to Repair Video File

Video files are different from any other type of data. Sometimes, you might find the videos get corrupted for any reason. Don't worry from now on. Wondershare Repairit works for you with an advanced video repair function. It scans, gathers, and matches the fragments of your corrupt videos. It uses the information from the working sample files and repairs the corrupted files. Below, we will describe how to repair corrupted video files with the help of Wondershare Repairit Video Repair.

Sometimes, video files become corrupted and showing the error message when you try to play. Videos files will be corrupted for different reasons; sometimes, a virus or malware corrupts it or corrupts due to unusual turn-off windows while playing a video.

To repair corrupted video files with Wondershare Repairit, please follow the beneath steps.

Step 1: Add Corrupted Videos

Start the Wondershare Repairit on your computer. At this point, add the corrupted file by 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.

add videos

Step 2: Quick Repairing

After uploading, click on the "Repair" button and wait for repairs.

scan videos

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.

preview videos

Advanced Repair (optional)

If the repaired video is 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 the same format as the corrupted file.)

add sample videos


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 for advertising different things on websites because this way the information is more effective and easily understood. However, videos can slow the websites if the size of a video huge and take time to load. To prevent this issue, you can create videos by using HTML5 and follow the below helpful tips.

  • You should know the target device where your video will be played.
  • Before making the actual video, making a prototype, and assessing the suitable size, 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 video's quality settings because high-quality settings videos take more space and large.
  • Also, check on videos' format because all types of video formats do not support some browsers.
  • The video attributes like height, width is critical. 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, the Developer makes mistakes during embedded the videos in web pages that cause the HTML5 video file not found an error. You can check the ways that describe above to identify the issue and use Wondershare Repairit 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

staff Editor

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