HTML5 Video File Not Found – Overview
To begin HTML5 video is a video playing element to play videos on the web, supported by all browsers, and helps control video playback using pause, play, stop, and volume attributes.
When you see an HTML5 video file not found error, it means one of three things: an outdated browser, a missing codec, or a website issue. In the case of website issues like code glitches or inaccessible video files, they can only be fixed from the backend.
Apart from website issues, we have listed 7 solutions that you can follow to get rid of the “HTML video file not found” error on all major web browsers like Google Chrome and Microsoft Edge. Continue reading.
7 Solutions to Fix “HTML5 Video Not Found” Error (Chrome, Edge)
Try the solutions below one by one till you fix the “HTML5 video file not found” error:
- Restart Your Browser
- Update the Browser
- Open In Incognito/Private Mode
- Clear Cache and Cookies
- Disable Hardware acceleration
- Disable Proxy Settings
- Download the Required Codecs
1: Restart Your Browser
Simply restart the browser to fix simple glitches causing the “HTML5 video not found” error.
2: Update the Browser
Outdated browsers will not support HMTL5 video, ensure you update the browser is updated. If not updating the browsers can potentially fix the “HTML5 file video not found” issue.
Most browsers update automatically by default. If your browser is outdated, here is how you can update it.
Chrome: Tap on the three vertical dots on the top-right corner > Settings> About Chrome and check for the latest updates.

Edge: Tap on the three horizontal dots on the top-right corner > Settings > About Microsoft Edge to check the latest updates.

3: Open In Incognito/Private Mode
Try opening the website in incognito or private mode to check if the video file plays without any playback issues.
Incognito or private mode enables you to surf the internet without relying on cache data and plugins. If the video plays without any issues, then it could be a faulty extension on your browser. You will need to remove them to fix the “HTML5 video file not found” error.
4: Clear Cache and Cookies
In case of outdated or corrupted cache files, you would face html5 video not found error so, erasing the cache and cookies can help fix the error. Additionally, it can also improve website loading times.
Here is how it is done on Chrome and Edge:
Chrome: Press Ctrl+Shift+Del and select Browsing history, Cookies and other site data, and Cached images and files. click on Clear data.

Edge: Press Ctrl+Shift+Del and select Browsing history, Download history, Cookies, and other site data, Cached images and files, and click on Clear now.

5: Disable Hardware acceleration
Try disabling hardware acceleration in your browser to reduce conflicts between the browser and GPU drivers, which can lead to an “HTML5 video not properly encoded” error.
Chrome: Go to Settings > System > toggle off the Use graphics acceleration when available and click on Relaunch.

Edge: Type edge://settings/system on the address bar > turn off Use hardware acceleration when available > Click on Restart.

6: Disable Proxy Settings
Proxy settings on your web browser might block the video content as they introduce additional connection points. Try disabling them to resolve the video playback errors.
Chrome: Settings > System > Open your computer’s proxy settings.
Edge: Settings > System and Performance > Open your computer’s proxy settings.
This will open the proxy setup settings window, Toggle off both Automatically detect settings & Use Setup script under the Automatic proxy setup section, and play the video to see if the issue is resolved.

7: Download the Required Codecs
When your browser lacks the necessary codec to play the video, it will throw an “HTML5 video not properly encoded” error. You should try contacting the website developer to install all the HTML5 codecs for OGG, MP4, and WebM video file formats.
Also Read: How To Repair Video Files That Won’t Play On Mac?
BONUS: How to Fix a Corrupt Video File? (Offline)
If the local video files are struggling to plate or have any pixelated due to corruption, you will have to use an efficient video repair tool to fix those corruption issues. Make sure you choose a reputed video repair software that supports your video file format to repair the damaged video files.
Conclusion
In the end, video playback errors like “HTML5: Video file not found.” shouldn’t stop you from watching your favorite videos. We hope the solutions listed in this article helped you fix the video playback issues on your device.
However, keep the browser updated and remove cache files regularly to avoid issues like these in the future. Happy watching!