Comment réparer Firefox qui ne lit pas les vidéos (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.

Comment réparer Firefox qui ne lit pas les vidéos

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• Outdated version of Firefox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. Aller à l' Start menu > Power > Restart tel que représenté.

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. lancement Firefox browser and then open the Menu en cliquant sur le three-dashed icon. Sélectionner d’aide comme indiqué ci-dessous.

2. Ensuite, cliquez sur À propos de Firefox comme suit.

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

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

5. Enfin, recommencer le navigateur.

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

Méthode 2 : désactiver l’accélération matérielle

Accélération matérielle 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. lancement Firefox et ouvert le menu as before. Select Paramètres, comme indiqué dans l'image ci-dessous.

2. Then, uncheck the box next to Utiliser les paramètres de performances recommandés sous le Performance languette.

3. Next, uncheck the box next to Utiliser l'accélération matérielle si disponible.

4. Enfin, recommencer Firefox. Check if Firefox can play videos.

Lisez aussi: How To Fix Firefox Black Screen Issue

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. lancement Firefox et le Menu. Ici, cliquez sur Modules complémentaires et thèmes comme illustré ci-dessous.

2. Ensuite, cliquez sur Extensions from the left pane to see the list of add-on extensions.

3. Cliquez sur le trois points next to each add-on and then select Effacer. As an example, we have removed Enhancer pour YouTube extension in the attached screenshot.

4. After removing the unwanted add-ons, recommencer 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. Ouvert Firefox. Allez à Side menu > Settings as you did earlier.

2. Ensuite, cliquez sur Confidentialité et sécurité from the left pane. It is indicated by a lock icon, comme indiqué dans l'image ci-dessous.

3. Then, scroll down to the Cookies et données de site option. Cliquer sur Effacer les données comme souligné.

4. Next, check the boxes next to both, Cookies et données de site ainsi que les Contenu Web mis en cache in the pop-up window that follows.

5. Enfin, cliquez sur Tansparent ainsi que les Recommencer 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. Visitez le site de NDN Collective where videos are not playing using Firefox. Here, Twitter is shown as an example.

2. Ensuite, cliquez sur le Icône de verrouillage to expand it. Here, click on the sideward arrow comme souligné ci-dessous.

3. Ensuite, sélectionnez Plus d'information comme indiqué ci-dessous.

4. dans le Informations sur la page menu, allez au Permissions languette.

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

6. Ensuite, cliquez sur 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. Naviguez vers le Side menu > Settings> Privacy and Security comme indiqué dans Méthode 4.

2. Faites défiler jusqu'à Permissions and click on Autoplay Paramètres, comme souligné.

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

Lisez aussi: Correction d'une erreur de serveur introuvable dans Firefox

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:

Autorise les cookies

1. lancement Firefox navigateur et accédez à Side menu > Settings > Confidentialité et sécurité comme expliqué précédemment.

2. Sous le Cookies et données de site section, cliquez sur Gérer les exceptions tel que représenté.

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 History .

2. Choisissez de Remember History Dans le menu déroulant.

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

Allow Pop-Ups

1. Retournez à la Privacy and Security page à la Permissions .

2. Here, uncheck the box next to Bloquer les fenêtres pop-up comme indiqué ci-dessous.

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. dans le Firefox navigateur, accédez au Side menu > Help, comme indiqué ci-dessous.

2. Ensuite, cliquez sur Plus Des informations de dépannage comme illustré ci-dessous.

3. Des informations de dépannage page is displayed on the screen. Finally, click on Reparer Firefox, comme indiqué ci-dessous.

Recommandée:

Nous espérons que ce guide vous a été utile et que vous avez pu 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.