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• Outdated version of Firefox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. Naar de Start menu > Power > Restart zoals afgebeeld.

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.

Methode 1: Firefox bijwerken

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. Lancering Firefox browser and then open the MENU door op te klikken three-dashed icon. Kiezen Help zoals hieronder.

2. Klik vervolgens op Over Firefox als volgt.

3. In the new window that now opens, Firefox will check for updates. If no updates are available, the Firefox is up-to-date message will be displayed as below.

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

5. Ten slotte, restart de browser.

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

Methode 2: Hardwareversnelling uitschakelen

Hardware acceleratie 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. Lancering Firefox open het menu as before. Select Instellingen, zoals weergegeven in de onderstaande afbeelding.

2. Then, uncheck the box next to Gebruik aanbevolen prestatie-instellingen onder de Performance Tab.

3. Next, uncheck the box next to Gebruik hardware versnelling indien mogelijk.

4. Ten slotte, restart Firefox. Check if Firefox can play videos.

Lees ook: How To Fix Firefox Black Screen Issue

Methode 3: Firefox-extensies uitschakelen

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. Lancering Firefox en MENU. Klik hier op Add-ons en thema's zoals hieronder afgebeeld.

2. Klik vervolgens op uitbreidingen from the left pane to see the list of add-on extensions.

3. Klik op het drie punten next to each add-on and then select verwijderen. As an example, we have removed Enhancer voor YouTube extension in the attached screenshot.

4. After removing the unwanted add-ons, restart 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. Open Firefox. Ga naar uw Side menu > Settings as you did earlier.

2. Klik vervolgens op Privacy en Beveiliging from the left pane. It is indicated by a lock icon, zoals weergegeven in de afbeelding hieronder.

3. Then, scroll down to the Cookies en sitegegevens keuze. Klik op Verwijder gegevens zoals gemarkeerd.

4. Next, check the boxes next to both, Cookies en sitegegevens en Webinhoud in cache in the pop-up window that follows.

5. Klik ten slotte op Clear en Herstart 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. Bezoek de van de where videos are not playing using Firefox. Here, Twitter is shown as an example.

2. Klik vervolgens op de Lock-pictogram to expand it. Here, click on the sideward arrow zoals hieronder benadrukt.

3. Selecteer vervolgens Meer informatie zoals hieronder aangegeven.

4. In de Pagina informatie menu, ga naar het machtigingen Tab.

5. Onder de 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. Navigeer naar de Side menu > Settings> Privacy and Security zoals geïnstrueerd in Methode 4.

2. Blader naar beneden naar machtigingen and click on Autoplay Instellingen, zoals benadrukt.

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. Ten slotte restart the browser. Check if the ‘videos not playing on firefox’ issue has been resolved. If it isn’t, read below.

Lees ook: Fout bij server niet gevonden in Firefox repareren

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:

Sta cookies toe

1. Lancering Firefox browser en navigeer naar Side menu > Settings > Privacy en veiligheid as explained previously.

2. Onder de Cookies en sitegegevens sectie, klik op Beheer uitzonderingen zoals afgebeeld.

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 Geschiedenis pagina.

2. Kies voor Remember History In de vervolgkeuzelijst.

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

Allow Pop-Ups

1. Ga terug naar de Privacy and Security page aan de machtigingen pagina.

2. Here, uncheck the box next to Pop-upvensters blokkeren zoals hieronder aangegeven.

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. In de Firefox browser, ga naar de Side menu > Help, zoals hieronder aangegeven.

2. Klik vervolgens op Meer Informatie voor het oplossen van probleem zoals hieronder afgebeeld.

3. Informatie voor het oplossen van probleem page is displayed on the screen. Finally, click on Vernieuw FirefoxZoals hieronder aangegeven.

Aanbevolen:

We hopen dat deze gids nuttig was en dat u in staat was om 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.