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• Outdated version of Firefox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. Gean nei de Start menu > Power > Restart lykas ôfbylde.

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. Launch Firefox browser and then open the menu troch te klikken op 'e three-dashed icon. Útkieze Help lykas hjirûnder werjûn.

2. Klikje dan op Oer Firefox as folget.

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

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

5. As lêste, opnij begjinne de browser.

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

Metoade 2: Hardware Acceleration útsette

Hardware fersnelling 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. Launch Firefox en iepen it menu as before. Select ynstellings, lykas werjûn yn 'e ôfbylding hjirûnder.

2. Then, uncheck the box next to Brûk oanbefellende prestaasjes ynstellings ûnder de Optreden tab.

3. Next, uncheck the box next to Brûk asjebleaft hardware-fersnelling.

4. As lêste, opnij begjinne Firefox. Check if Firefox can play videos.

Lês ek: How To Fix Firefox Black Screen Issue

Metoade 3: Firefox-tafoegings útskeakelje

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. Launch Firefox en har menu. Hjir, klik op Add-ons en tema's lykas hjirûnder ôfbylde.

2. Klikje dan op Tafoegings from the left pane to see the list of add-on extensions.

3. Klik op 'e trije punten next to each add-on and then select Weinimme. As an example, we have removed Enhancer foar YouTube extension in the attached screenshot.

4. After removing the unwanted add-ons, opnij begjinne 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. Iepen Firefox. Gean nei de Side menu > Settings as you did earlier.

2. Klikje dan op Privacy en feiligens from the left pane. It is indicated by a lock icon, lykas werjûn yn 'e ôfbylding hjirûnder.

3. Then, scroll down to the Koekjes en sitegegevens opsje. Klikje op Brûkte data lykas markearre.

4. Next, check the boxes next to both, Koekjes en sitegegevens en Cached webynhâld in the pop-up window that follows.

5. As lêste, klikje op Opklearje en Restart 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.Besykje de website where videos are not playing using Firefox. Here, Twitter is shown as an example.

2. Folgjende, klik op de Lock icon to expand it. Here, click on the sideward arrow lykas hjirûnder markearre.

3. Selektearje dan Mear ynformaasje lykas hjirûnder sjen litten.

4. Yn de Sideynformaasje menu, gean nei de Permissions tab.

5. Ûnder 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. Gean nei de Side menu > Settings> Privacy and Security lykas ynstruearre yn Metoade 4.

2. Gean nei nei Permissions and click on Autoplay ynstellings, lykas markearre.

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. Ta beslút, opnij begjinne the browser. Check if the ‘videos not playing on firefox’ issue has been resolved. If it isn’t, read below.

Lês ek: Fix tsjinner net fûn flater yn 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:

Allow Cookies

1. Launch Firefox browser en navigearje nei Side menu > Settings > Privacy en feiligens as explained previously.

2. Ûnder de Koekjes en sitegegevens seksje, klikje op Utsûnderingen beheare lykas ôfbylde.

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 Skiednis ôfdieling.

2. Choose to Remember History út it dellûk menu.

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

Allow Pop-Ups

1. Gean werom nei de Privacy and Security page oan 'e Permissions ôfdieling.

2. Here, uncheck the box next to Block pop-up windows lykas hjirûnder sjen litten.

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. Yn de Firefox browser, gean nei de Side menu > Help, lykas hjirûnder sjen litten.

2. Klikje dan op Mear Ynformaasje oer probleemoplossing lykas hjirûnder ôfbylde.

3. Ynformaasje oer probleemoplossing page is displayed on the screen. Finally, click on Ferfarskje Firefox, lykas hjirûnder werjûn.

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Wy hoopje dat dizze gids nuttich wie en dat jo dat koenen 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.