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- Outdated version of Firefox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。 去 Start menu > Power > Restart 如图所示。
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 火狐, 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。 发射 火狐 browser and then open the 菜单 通过点击 three-dashed icon。 选择 政策和帮助 如下图所示，.
2。 接下来，单击 关于Firefox 如下所示。
3. In the new window that now opens, Firefox will check for updates. If no updates are available, the 火狐浏览器是最新的 message will be displayed as below.
4. If an update is available, Firefox will automatically install the update.
5。 最后， 重新开始 浏览器。
If you still face the same issue, try the next fix.
方法四：关闭硬件加速
硬件加速 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。 发射 火狐 和开放的 菜单 as before. Select 个人设置，如下图所示。
2. Then, uncheck the box next to 使用建议的性能设置 在下面 性能 标签。
3. Next, uncheck the box next to 如果可用，请使用硬件加速。
4。 最后， 重新开始 Firefox. Check if Firefox can play videos.
另请参阅： How To Fix Firefox Black Screen Issue
方法 3：禁用 Firefox 扩展
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。 发射 火狐 以及 菜单。在这里，点击 附加组件和主题 如下图所示。
2。 接下来，单击 扩展 from the left pane to see the list of add-on extensions.
3。 点击 三个点 next to each add-on and then select 删除. As an example, we have removed YouTube增强器 extension in the attached screenshot.
4. After removing the unwanted add-ons, 重新开始 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。 打开 火狐Firefox。 去 Side menu > Settings as you did earlier.
2。 接下来，单击 隐私和安全 from the left pane. It is indicated by a lock icon, 如下图所示。
3. Then, scroll down to the Cookie和网站数据 选项。 点击 清除数据 如突出显示的。
4. Next, check the boxes next to both, Cookie和网站数据 和 缓存的网页内容 in the pop-up window that follows.
5.最后，点击 清除 和 重新启动 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.访问 官网 where videos are not playing using Firefox. Here, Twitter is shown as an example.
2.接下来，点击 锁定图标 to expand it. Here, click on the sideward arrow 如下突出显示。
3. 然后，选择 更多信息 如下所示。
4.在 页面信息 菜单，转到 权限 标签。
5。 在下面 自动播放 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。 导航到 Side menu > Settings> Privacy and Security 按照指示 方法4.
2。 向下滚动到 权限 and click on Autoplay 个人设置，如突出显示的那样。
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。 最后， 重新开始 the browser. Check if the ‘videos not playing on firefox’ issue has been resolved. If it isn’t, read below.
另请参阅： 修复 Firefox 中找不到服务器的错误
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:
允许 Cookie
1。 发射 火狐 浏览器并导航到 Side menu > Settings > 隐私和安全 as explained previously.
2。 在下面 Cookie和网站数据 部分，点击 管理例外 如图所示。
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 历史进程 部分。
2. Choose to Remember History 从下拉菜单中选择。
3. Move to the next step without exiting the settings page.
Allow Pop-Ups
1。 回去吧 Privacy and Security page 到 权限 部分。
2. Here, uncheck the box next to 阻止弹出窗口 如下所示。
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.在 火狐 浏览器，进入 Side menu > Help, 如下所示。
2。 接下来，单击 更多 故障排除信息 如下图所示。
3. 故障排除信息 page is displayed on the screen. Finally, click on 刷新Firefox， 如下所示。
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我们希望本指南对您有所帮助，并且您能够 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.
