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Not playing html5. Your browser does not currently recognize any of the video formats. Additional ways to resolve the HTML5 error


Today, the user can increasingly see that the video has stopped and appeared HTML5 error. So a site crash requires a page reload and reloading the content if it does work. This state of affairs is unacceptable, especially for those who have limited Internet access. It is necessary to disassemble and fix the malfunction, usually this is done simply.

What does HTML5 error mean?

On the Internet, questions are increasingly being observed, how to fix the HTML5 error, and this problem has caused a lot of guesswork. Dealing with real ways to fix the problem is our key task.

HTML5 is a modern standard, more precisely, a digital structure language. It allows you to display program code in a visual interface that is understandable to the user and convert script functions to machine code. HTML5 is a convenient platform for many sites and allows you to correctly process the code and structure of the site. In particular, the greatest emphasis is placed on media content.

The introduction of the HTML5 version provoked the fact that there was no normal processing of media content on the network. So, earlier, third-party players were used for video, the most famous Adobe Flash Player. An additional plugin was never considered a good solution, only a temporary one, since everything should be within a single browser. Google took a simple path and integrated it into its browser.

Starting in 2013, the development of applications for HTML5 began, but the process was somewhat delayed. However, today most of the well-known resources have switched to it, the same YouTube since 2016 has almost completely used this standard.

HTML5 video playback error occurs due to various reasons, the most common are:

  1. Crash in the browser, most often one-time;
  2. Browser is outdated;
  3. Server problems;
  4. Application or extension conflict.

HTML5 error in video player, how to fix?

An HTML5 error when viewing a video is not a situation that you just have to put up with. By taking the following actions, it is possible to eliminate most of the errors, although no one is immune from their periodic appearances.

The easiest way to resolve the error is to simply refresh the tab. Helps with one-time failures, when the reason was temporary and everything will work again. Initially, you need to resort to this particular method by pressing F5.

Sometimes a video driver or other element causes problems on a certain site with a certain resolution. You should change the resolution to a lower or higher resolution in the player settings. It is necessary that the computer confidently draws the format, so not everyone can install 4k.

It is likely that due to the clogging of the browser with garbage, it is not able to properly process the video. It is necessary to clear cookies and cache, it is better for all time, while you can not touch the history. To do this, press the combination Ctrl + Shift + Del. Select the period for which you want to clean (preferably first) and start the procedure.

The old version of the browser provokes a variety of problems in the processing of video content. All more or less new browsers are capable of handling HTML5 correctly, so it's worth it to just keep it up to date. To update, you can go to the appropriate settings tab or go to "Details" and check the freshness of the version.

You can check that the problem is in the target browser if you go to the resource from another browser and the error does not appear there. Then it is better to abandon the browser as a whole, switching to another one, or reinstalling it from scratch.

Additional ways to resolve the HTML5 error

Conflicts in extensions and the browser often cause crashes. Heaping or even using a single addon is not always safe. Often the user is not even aware of the presence of these plugins, all extensions should be cleared or temporarily disabled. To do this, click on the "Menu" and go to the "Extensions" item and click next to each item "Stop".

Sometimes an antivirus becomes the cause of the problem, especially with active protection in the network. It blocks, as it seems to it, unwanted traffic, and therefore, in the middle of the download, the resource can completely turn off. For example, when an ad appears inside a video, the antivirus senses this and blocks the connection. Also, firewalls can block traffic from receiving. Proxy or VPN may cause video content to fail. You should disable all programs that filter or redirect traffic.

It often happens that the problem is not on the client side (you), but on the resource side. Probably a DDOS attack has hit, technical work is underway or problems with hosting. In any case, the only thing that can be done is to report the problem to the resource administrators. Sometimes, due to geo-blocking, incorrect operation of the ad blocker, or disconnection of traffic from the country, the provider during a DDOS attack, connection problems occur. Having reported the problem, you can only expect that it will be promptly eliminated.

If the site has the ability to change the player, use it and switch to Adobe Flash as a temporary workaround. So the same YouTube, in the absence of HTML5 support, the browser will automatically transfer to the old form of work.

A set of tips and measures to get out of the situation will help you comfortably watch the video and not waste time on mistakes that waste time and nerves. These measures are aimed at normalizing the operation of the Internet connection and the browser - key elements for watching video on the network.

If you still have questions on the topic “What does the HTML5 error mean and how to fix it?”, You can ask them in the comments


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Every day, search engines are processing thousands of requests to fix the HTML5 video bug. And it is not surprising, because this technology is relatively new and is spreading at a fast pace. How to solve this problem, we will describe below.

Player Description

For many, it is no secret that in order to watch various kinds of videos, play online applications and perform other useful actions, special browser extensions are needed. Among them are Adobe Flashplayer, Microsoft Silverlight, Ace Stream and Quicktime. The proportion of web elements that support the above technologies exceeds 90%.

But that was until recently. After the presentation of the new HTML5 standard, it became possible to play videos and other media content using browser tools, without the participation of third-party plug-ins and additional codecs. The player supports all modern file extensions, including OGG, WebM, MP4 and others.

If the novelty is so good, why are there problems? This and related questions are answered below.

How to fix the error?

In the vast majority of cases, the problem is an outdated version of the browser that does not support the HTML5 standard. To update your Internet browser, go to "Settings" - "About" and click the "Check for Updates" button.

If the application reports that you are using the latest version, but the date of the previous update is more than six months old, delete the browser manually and download a new one from the official site.

But an app update might not be enough. As an alternative, do the following:


That's all. Now you know how to fix the HTML5 error when watching a video. If you know other ways to solve the problem, please share it in the comments.

Many users have encountered a problem when watching videos on the Internet with an HTML5 error in the video player “Video file not found”. We will talk about the HTML5 Video Player and its main advantages over similar technologies. We will also show you how to fix this error.

About HTML5 Video Player

The new HTML5 video playback format has been developed to make it easier to view videos on various websites. As a rule, most video players contain settings that require certain plug-ins and extensions in the browser. Such plug-ins are responsible for the type of video and support for its format in the player. Now, the most popular technologies are Flash, Quicktime, Microsoft Silverlight. For example, if you don't have Flash Player on your computer, you won't be able to open most videos, audios, and animations.

Unlike others, HTML5 technology allows you to view online video without the need to install additional elements in the browser and supports OGG, WebM, MP4 and other formats. The main thing is that the webmaster should use the code for generating videos in HTML5 on the site.

HTML5 Video Player is a relatively new technology for watching videos on the Internet, a distinctive feature of this video player is the absence of the requirement to install additional modules in browsers or certain codecs on a PC.

Fixing “HTML5: Video file not found” in the player

Recently, users are increasingly receiving notifications that the video is not supported when downloading the player on sites. This is due to the fact that the technology is being actively implemented on web resources, and HTML5 Video Player is supported on all modern browsers - Internet Explorer, Google Chrome, Safari, Firefox and Opera.

“HTML5: Video file not found” when uploading a video

To fix the Video file not found problem, you just need to have the latest version of your browser. If your browser was installed a long time ago, then apply the updates. In almost all cases, the problem is solved in this way. But if suddenly the video player does not start, then:

  • Often a crash occurs when a running video player is idle for a long time, so you just need to restart the page via CTRL + F5.
  • Try opening the website on a different browser;
  • Tweak the video settings, or rather the quality - sometimes such failures can be caused by a server response delay;
  • The error is caused by problems on the part of the site itself.

I repeat once again - the application of new updates almost always solves the problem of compatibility with the video player on the site.

Not often, but still, this problem can occur on Youtube. In this case, you need to check whether the player is connected to YouTube or not. You can do it like this: right-click on the video and select “About HTML5 Player”.

The HTML5 bug is a fairly common problem that many users are concerned about finding a solution to. HTML5 players have been used on websites for a relatively short time, so any difficulty with video playback is overwhelming.

HTML5 player

Before the introduction of HTML5 technology, various browser extensions were used to play videos, work online games and other media content: Adobe Flash Player, Ace Stream, etc.

Now many sites use HTML5 players that do not need extensions to work: the player supports all modern formats, playing them using the browser. Therefore, the same Flash Player is disabled in the latest versions of Chrome. Unfortunately, not all sites have switched from outdated flash technologies to HTML5 features, but the process is irreversible. However, the new technology is also not immune to bugs that users have to fix themselves.

Bug fix

Most often, the HTML5 error occurs when working with an outdated version of the browser. The site has an HTML5 player installed, but the browser does not know how to work with it, because it does not support the standard.

To fix this shortcoming, update the program. You can check for updates in your browser settings.

If the settings indicate that you are using the latest version of the browser, try reinstalling it manually. Uninstall the existing browser from the computer, saving the history and settings, and then download the installation file from the official site. If updating or reinstalling the program does not resolve the issue, try these alternative troubleshooting options:


One of the above actions will definitely help to fix the error, because HTML5 technology itself works without failures.

HTML is a web page markup language, in fact, it is responsible for the correct display of all elements on the page. Gradually, new language specifications are released, the latest is the fifth version, which brought the abolition of old and the introduction of new tags and functions. With HTML5 Yandex, the browser began to support video playback through its own Video Player, which does not require the installation of other plug-ins, such as Adobe Flash Player. The built-in functionality of the language allows you to play any movie on the site that supports HTML5.

In the absence of HTML5 for the Yandex browser, you had to use Flash Player to play video and some music. It turned out a situation in which it was impossible to listen to music using standard browser tools. The largest influx of users to Flash was provoked by the emergence of the largest video hosting YouTube. Over time, other large companies, such as Apple, began to use it for video processing.

User growth continued for a long time, with a big jump in popularity immediately after the release of HTML 4.01. The outflow occurred only after the release of the new HTML5 specification, which first appeared in 2012, but the full launch took place in 2014.

Several major shortcomings of the plug-in from Adobe are pushing the transition to HTML5 video player:

  • The need to additionally install in the system. Over time, it was added to Google Chrome by default;
  • Low speed and frequent interruptions in loading;
  • Poor stability of work, often crashes, conflicts, often had to reload the page.

Benefits of HTML5 vs. Adobe Flash Player

Technologies are inherently different, but intended for the same tasks. For users and developers, the new HTML5 standard has brought a lot of benefits:

  • Open source. The programmer can modify the code on his own. Useful for improving the security of business resources and applications;
  • Fast development. The development is carried out by an advanced W3C company, which draws good ideas from users finalizing the standard;
  • Compatible with most platforms. Flash Player is not supported on Android prior to 2.01 and 4.1x and newer, and the plugin is not compatible with iPhone and iPod. For the new player to work, you need to have a relatively new version of Yandex browser;
  • Energy efficient technology. The HTML5 video player consumes significantly less processor resources, and therefore saves battery power, which is important for any mobile phone.

What is HTML5 Video Player for Yandex browser?

HTML5 Video Player is a program designed to convert HTML5 video files. Additionally, you can watch videos through the application, but such a need does not arise with the modern capabilities of the Yandex browser. You can upload any file of common video formats to the program: mp4, AVI, MKV.

After processing the file, it will be suitable for uploading to the server, the publishing function is already built into the program. Before uploading to the server, the video can be viewed in the browser. It is better to download the program from the official site.

Some users complain that the application does not work, closing immediately after loading a file into it. Reinstalling or disabling the antivirus helps fix the problem. In order not to search for the causes of a malfunction, it is better to use a similar program - Free HTML5 Video Player.

The process for using both apps is similar:


To embed a video on a website, it is enough to copy the JavaScript code from the page in the browser that opened after the conversion and paste it into the video block on the web resource.

How to watch HTML5 Video in Yandex browser

In fact, no special techniques are required to view video in HTML5 Internet format. To start watching, just go to the video and the browser will do everything on its own. Playing videos on YouTube and many other services is not difficult, today this video hosting works exclusively with the HTML5 format, only for outdated browsers there is an automatic switch to the old Flash Player.

Sometimes you can't view HTML5 video if there are errors. The technology belongs to relatively stable ways of viewing visual content and sound, but periodically provokes errors:


Sometimes updating the Yandex browser helps:


For an ordinary user, viewing a video in HTML is not difficult, but it is important that the service supports the format. The well-known social network Facebook does not work with HTML5, but there is a way to open this feature through the HTML5 Video Player extension, you can download it from the link.

HTML 5 is a public format that is supported by all modern browsers and does not need to be installed separately. Using the HTML5 Video Player program for Yandex browser, you can watch, download videos and convert various formats to HTML5, making them available for online viewing.