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• Outdated version of Firefox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. Prejsť na Start menu > Power > Restart ako je znázornené.

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.

Method 1: Update 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. odpálenie Firefox browser and then open the menu kliknutím na tlačidlo three-dashed icon. Vybrať Pomoc , Ako je uvedené nižšie.

2. Potom kliknite na O Firefoxu nasledovne.

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

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

5. Nakoniec, reštart prehliadač.

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

Metóda 2: Vypnite hardvérovú akceleráciu

Hardvérová akcelerácia 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. odpálenie Firefox a otvorené menu as before. Select nastavenie, ako je znázornené na obrázku nižšie.

2. Then, uncheck the box next to Použite odporúčané nastavenia výkonu podľa výkon tab.

3. Next, uncheck the box next to Ak je to možné, použite hardvérovú akceleráciu.

4. Nakoniec, reštart Firefox. Check if Firefox can play videos.

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Method 3: Disable Firefox Extensions

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. odpálenie Firefox a jeho menu. Tu kliknite na Doplnky a motívy ako je znázornené nižšie.

2. Potom kliknite na Rozšírenie from the left pane to see the list of add-on extensions.

3. Kliknite na tri bodky next to each add-on and then select odstrániť. As an example, we have removed Vylepšovač pre YouTube extension in the attached screenshot.

4. After removing the unwanted add-ons, reštart 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. Otvoriť Firefox. Prejsť na Side menu > Settings as you did earlier.

2. Potom kliknite na Ochrana osobných údajov a zabezpečenie from the left pane. It is indicated by a lock icon, ako je znázornené na obrázku nižšie.

3. Potom prejdite nadol na položku Súbory cookie a údaje stránok možnosť. Kliknite na Vyčistiť dáta ako je zvýraznené.

4. Next, check the boxes next to both, Súbory cookie a údaje stránok a Webový obsah uložený vo vyrovnávacej pamäti in the pop-up window that follows.

5. Nakoniec kliknite na Vymazať a reštart the web browser.

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. Navštívte webové stránky where videos are not playing using Firefox. Here, Twitter is shown as an example.

2. Ďalej kliknite na Ikona uzamknutia to expand it. Here, click on the sideward arrow ako je zvýraznené nižšie.

3. Potom vyberte Viac informácií ako je uvedené nižšie.

4. V Informácie o stránke menu, prejdite na Oprávnenie tab.

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. Prejdite na položku Side menu > Settings> Privacy and Security podľa pokynov v Metóda 4.

2. Prejdite nadol na Oprávnenie and click on Autoplay nastavenie, ako je zvýraznené.

3. Here, ensure that Allow Audio and Video is enabled. If not, choose it from the drop-down menu as shown in the image below.

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

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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:

Allow Cookies

1. odpálenie Firefox prehliadač a prejdite na Side menu > Settings > Ochrana súkromia a bezpečnosť as explained previously.

2. Pod Súbory cookie a údaje stránok kliknite na Spravujte výnimky ako je znázornené.

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 História Sekcia.

2. Vyberte si Remember History z rozbaľovacej ponuky.

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

Allow Pop-Ups

1. Vráťte sa na stránku Privacy and Security page k Oprávnenie Sekcia.

2. Here, uncheck the box next to Block pop-up windows ako je uvedené nižšie.

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.

Method 7: Refresh 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 prehliadač, prejdite na Side menu > Help, ako je uvedené nižšie.

2. Potom kliknite na viac Informácie o riešení problémov ako je znázornené nižšie.

3. Informácie o riešení problémov page is displayed on the screen. Finally, click on Obnovte Firefox, ako je uvedené nižšie.

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Dúfame, že vám tento návod pomohol a vy ste to dokázali 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.