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• Outdated version of Firefox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. Mus rau Start menu > Power > Restart raws li tau piav qhia.

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. Tua tawm Firefox browser and then open the ntawv qhia zaub mov los txhaj rau three-dashed icon. Xaiv pab raws li qhia hauv qab no.

2. Txuas ntxiv mus, nyem rau ntawm Hais txog Firefox raws li hauv qab no.

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

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

5. Thaum kawg, pib dua qhov browser.

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

Txoj Kev 2: Tuav Hardware Acceleration

Kho vajtse acceleration 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. Tua tawm Firefox thiab qhib cov zaub mov as before. Select chaw, raws li qhia hauv daim duab hauv qab no.

2. Then, uncheck the box next to Siv cov kev nqis tes ua haujlwm uas pom zoo nyob hauv Performance tab.

3. Next, uncheck the box next to Siv kho vajtse nrawm dua thaum muaj.

4. Thaum kawg, pib dua Firefox. Check if Firefox can play videos.

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Txoj Kev 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. Tua tawm Firefox thiab nws ntawv qhia zaub mov. Ntawm no, nyem rau ntawm Ntxiv-ons thiab Themes raws li tau piav qhia hauv qab no.

2. Txuas ntxiv mus, nyem rau ntawm extensions from the left pane to see the list of add-on extensions.

3. Nyem ntawm qhov peb lub pob next to each add-on and then select tshem tawm. As an example, we have removed Txhim kho rau YouTube extension in the attached screenshot.

4. After removing the unwanted add-ons, pib dua 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. Qhib Firefox. Mus rau lub Side menu > Settings as you did earlier.

2. Txuas ntxiv mus, nyem rau ntawm Kev Tiv Thaiv thiab Ruaj Ntseg from the left pane. It is indicated by a lock icon, raws li qhia hauv daim duab hauv qab no.

3. Then, scroll down to the Ncuav Qab Zib thiab Cov Ntaub Ntawv Hauv Tsev Kawm Ntawv kev xaiv. Nyem rau Clear ntaub ntawv raws li qhov tseem ceeb.

4. Next, check the boxes next to both, Ncuav Qab Zib thiab Cov Ntaub Ntawv Hauv Tsev Kawm Ntawv thiab Cached Web Cov Ntsiab Lus in the pop-up window that follows.

5. Kawg no, nyem rau Clear thiab Pib dua 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. Mus saib website where videos are not playing using Firefox. Here, Twitter is shown as an example.

2. Tom ntej no, nyem rau ntawm qhov Xauv icon to expand it. Here, click on the sideward arrow raws li tau hais tseg hauv qab no.

3. Tom qab ntawd, xaiv Xav paub ntau ntxiv raws li qhia hauv qab no.

4. Hauv Nplooj Ntawv Qhia menu, mus rau lub permissions tab.

5. Hauv qab no 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. Nkag mus rau Side menu > Settings> Privacy and Security raws li qhia hauv Txoj kev 4.

2. Tshem mus permissions and click on Autoplay chaw, raws li qhov tseem ceeb.

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. Thaum kawg, pib dua 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. Tua tawm Firefox browser thiab coj mus rhaub rau Side menu > Settings > Kev ceev ntiag tug thiab kev ruaj ntseg as explained previously.

2. Hauv qab no Ncuav Qab Zib thiab Cov Ntaub Ntawv Hauv Tsev Kawm Ntawv ntu, nyem rau ntawm Tswj kev zam raws li tau piav qhia.

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 Keeb kwm seem.

2. Choose to Remember History los ntawm daim ntawv qhia zaub mov nco.

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

Allow Pop-Ups

1. Rov qab mus rau Privacy and Security page mus rau lub permissions seem.

2. Here, uncheck the box next to Block pop-up windows raws li qhia hauv qab no.

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. Hauv Firefox browser, mus rau qhov chaw Side menu > Help, raws li qhia hauv qab no.

2. Txuas ntxiv mus, nyem rau ntawm ntau Cov Lus Qhia Txog Kev Daws Teeb Meem raws li tau piav qhia hauv qab no.

3. Cov Lus Qhia Txog Kev Daws Teeb Meem page is displayed on the screen. Finally, click on Hloov tshiab Firefox, raws li qhia hauv qab no.

pom zoo:

Peb cia siab tias phau ntawv qhia no yuav pab tau thiab koj tuaj yeem ua tau 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.