How to Fix Firefox Not Playing Videos (2023)

The Mozilla Foundation developed Mozilla Firefox as an open-sourced browser. It was released in 2003 and soon gained wide popularity because of its user-friendly interface and wide range of available extensions. However, the popularity of Firefox declined when Google Chrome was released. Since then, both have been giving tough competition to each other.

Firefox still has a loyal fan base who still prefer this browser. If you are one of them but feel frustrated due to the Firefox not playing videos issue, do not worry. Simply read on to know how to fix Firefox not playing videos.

How to Fix Firefox Not Playing Videos

Why Firefox not playing videos error occurs?

There can be various reasons for this error to occur, namely:

• Outdated version of Firefox
• Firefox extensions & acceleration features
• Corrupt cache memory & cookies
• Disabled cookies & pop-ups

Before, doing any advance troubleshooting, you should first try to restart your PC and check if the Firefox not playing videos issue is resolved or not.

1. Přejít na Start menu > Power > Restart jak je znázorněno.

Once the computer has restarted, launch Firefox and check if videos are playing. Hopefully, the issue is resolved. If not, then continue with the below methods.

Metoda 1: Aktualizujte Firefox

If you have not installed the latest updates to Firefox, it may lead to issues when you try to play videos on this web browser. There might be bugs in your current version of Firefox, which an update might fix. Follow these steps to update it:

1. Zahájení Firefox browser and then open the menu klepnutím na tlačítko three-dashed icon. Vybrat Pomoc , jak je uvedeno níže.

2. Dále klikněte na tlačítko O Firefoxu jak následuje.

3. In the new window that now opens, Firefox will check for updates. If no updates are available, the Firefox je aktuální message will be displayed as below.

4. If an update is available, Firefox will automatically install the update.

5. Nakonec znovu prohlížeč.

If you still face the same issue, try the next fix.

Metoda 2: Vypněte hardwarovou akceleraci

Hardwarová akcelerace is the process wherein certain hardware components are assigned specific tasks to enhance the functioning of a program. The hardware acceleration feature in Firefox provides convenience and speed, but it also might contain error-causing bugs. Therefore, you can try to disable hardware acceleration to potentially fix videos not loading Firefox issue as:

1. Zahájení Firefox a otevřené nabídka as before. Select Nastavení, jak je znázorněno na obrázku níže.

2. Then, uncheck the box next to Použijte doporučené nastavení výkonu pod Výkon Karta.

3. Next, uncheck the box next to Je-li k dispozici, použijte hardwarovou akceleraci.

4. Nakonec znovu Firefox. Check if Firefox can play videos.

Také čtení: How To Fix Firefox Black Screen Issue

Metoda 3: Zakažte rozšíření Firefoxu

Add-ons that are enabled on the Firefox browser may be interfering with websites and not allowing videos to play. Follow the steps below to disable add-ons and fix Firefox no audio & not playing videos issue:

1. Zahájení Firefox a jeho menu. Zde klikněte na Doplňky a motivy jak je znázorněno níže.

2. Dále klikněte na tlačítko Rozšíření from the left pane to see the list of add-on extensions.

3. Klikněte na tři tečky next to each add-on and then select Odstranit. As an example, we have removed Vylepšení pro YouTube extension in the attached screenshot.

4. After removing the unwanted add-ons, znovu the browser and verify if the issue is resolved.

If Firefox not playing videos problem persists, you can clear the browser cache and cookies as well.

Method 4: Delete Browser Cache and Cookies

If the cache files and cookies of the browser get corrupt, it can lead to Firefox not playing videos error. Here’s how to delete cache and cookies from Firefox:

1. Otevřít Firefox. Přejít na Side menu > Settings as you did earlier.

2. Dále klikněte na tlačítko Ochrana soukromí a zabezpečení from the left pane. It is indicated by a lock icon, jak je znázorněno na obrázku níže.

3. Then, scroll down to the Soubory cookie a data stránek volba. Klikněte na Vyčistit data jak je zvýrazněno.

4. Next, check the boxes next to both, Soubory cookie a data stránek a Webový obsah v mezipaměti in the pop-up window that follows.

5. Nakonec klikněte na Zrušit a Restart webový prohlížeč.

Check if the above method worked to fix the issue of Firefox not playing videos. If not, move to the next solution.

Method 5: Allow Autoplay on Firefox

If you are facing the ‘Twitter videos not playing on Firefox’ problem, then it may be because Autoplay is not enabled on your browser. Here’s how to fix Firefox not playing videos error:

1. Navštivte webových stránkách where videos are not playing using Firefox. Here, X is shown as an example.

2. Dále klikněte na Ikona zámku to expand it. Here, click on the sideward arrow jak je zvýrazněno níže.

3. Poté vyberte Více informací jak je uvedeno níže.

4. V Informace o stránce menu, přejděte na Oprávnění Karta.

5. Pod Autoplay section, uncheck the box next to Use default.

6. Then, click on Allow Audio and Video. Refer to the image below for clarity.

Enable Autoplay for All Websites

You can also ensure that the Autoplay feature is allowed for all websites, by default, as follows:

1. Přejděte na Side menu > Settings> Privacy and Security jak je uvedeno v Metoda 4.

2. Přejděte dolů na Oprávnění and click on Autoplay Nastavení, jak je zvýrazněno.

3. Here, ensure that Povolit zvuk a video is enabled. If not, choose it from the drop-down menu as shown in the image below.

4. Nakonec znovu the browser. Check if the ‘videos not playing on firefox’ issue has been resolved. If it isn’t, read below.

Také čtení: Oprava chyby Server nenalezen ve Firefoxu

Method 6: Allow Cookies, History, and Pop-ups

Some websites require cookies and pop-ups to be allowed on your browser to stream data and audio-video content. Follow the steps written here to allow cookies, history, and pop-ups on Firefox:

Povolit soubory cookie

1. Zahájení Firefox prohlížeč a přejděte na Side menu > Settings > Ochrana soukromí a bezpečnost as explained previously.

2. Pod Soubory cookie a data stránek klikněte na Správa výjimek jak je znázorněno.

3. Here, make sure that no website is added to the list of exceptions to block cookies.

4. Move to the next step without leaving this page.

Allow History

1. On the same page, scroll down to the Historie sekce.

2. Vyberte možnost Remember History z rozbalovací nabídky.

3. Move to the next step without exiting the settings page.

Allow Pop-Ups

1. Vraťte se zpět do Privacy and Security page k Oprávnění sekce.

2. Here, uncheck the box next to Blokovat vyskakovací okna jak je uvedeno níže.

Once the above steps have been executed, try to play videos on Firefox.

If the Firefox videos not playing issue persists, move to the succeeding methods to refresh Firefox and reboot your computer.

Metoda 7: Obnovte Firefox

When you use the Refresh Firefox option, your browser will be reset, potentially fixing all minor glitches you are currently experiencing. Here’s how to Refresh Firefox:

1. V Firefox prohlížeče, přejděte na Side menu > Help, jak je uvedeno níže.

2. Dále klikněte na tlačítko Moře Informace o řešení problému jak je znázorněno níže.

3. Informace o řešení problému page is displayed on the screen. Finally, click on Aktualizovat Firefox, Jak je ukázáno níže.

Doporučená:

Doufáme, že vám tento návod pomohl a že jste to zvládli fix Firefox not playing videos issue. Also, let us know which method worked the best for you. Finally, if you have any questions or suggestions regarding this article, feel free to drop them in the comments section below.