Mozilla 基金会(Mozilla Foundation)将Mozilla Firefox开发为开源浏览器。它于 2003 年发布，并因其用户友好的界面和广泛的可用扩展而迅速广受欢迎。然而，当Google Chrome发布时， Firefox的受欢迎程度有所下降。从那以后，双方一直在进行激烈的竞争。
Firefox仍然有忠实的粉丝群，他们仍然喜欢这款浏览器。如果您是其中之一，但由于Firefox无法播放视频问题而感到沮丧，请不要担心。只需(Simply)继续阅读以了解如何修复 Firefox 不播放视频。(how to fix Firefox not playing videos.)
如何修复 Firefox(Fix Firefox)不播放视频(Videos)
为什么 Firefox 出现不播放视频错误？(Why Firefox not playing videos error occurs?)
发生此错误可能有多种原因，即：
- 过时的 Firefox 版本
- Firefox扩展和加速功能
- 损坏的缓存内存和 cookie
- 禁用 cookie 和弹出窗口
在进行任何高级故障排除之前，您应该首先尝试重新启动 PC 并检查Firefox不播放视频问题是否已解决。
1. 如图所示，转到Start menu > Power > Restart 。
计算机重新启动后，启动Firefox并检查视频是否正在播放。希望(Hopefully)问题得到解决。如果没有，则继续使用以下方法。
方法一：更新火狐(Method 1: Update Firefox)
如果您尚未安装Firefox的最新更新，则在您尝试在此 Web 浏览器上播放视频时可能会出现问题。您当前版本的Firefox中可能存在错误，更新可能会修复这些错误。请按照以下步骤进行更新：
1. 启动Firefox浏览器，然后单击三虚线图标打开(three-dashed icon)菜单(menu)。选择帮助( Help )，如下所示。
2.接下来，点击关于Firefox(About Firefox )，如下。
3. 在现在打开的新窗口中，Firefox将检查更新。如果没有可用的更新，Firefox 是最新(Firefox is up to date )消息将显示如下。
4. 如果有可用更新，Firefox会自动安装更新。
5. 最后，重启(restart)浏览器。
如果您仍然面临同样的问题，请尝试下一个修复。
方法二：关闭硬件加速(Method 2: Turn Off Hardware Acceleration)
硬件加速(Hardware acceleration)是为某些硬件组件分配特定任务以增强程序功能的过程。Firefox中的硬件加速功能提供了便利和速度，但它也可能包含导致错误的错误。因此，您可以尝试禁用硬件加速以潜在地修复视频不加载Firefox问题：
1. 启动Firefox并像以前一样打开菜单( the menu)。选择设置(Settings)，如下图所示。
2. 然后，取消选中“性能”(Performance)选项卡下使用推荐的性能设置(Use recommended performance settings)旁边的框。
3. 接下来，取消选中使用硬件加速（如果可用）(Use hardware acceleration when available.)旁边的框。
4. 最后重启(restart) 火狐(Firefox)。检查Firefox是否可以播放视频。
另请阅读：(Also Read:) 如何修复 Firefox 黑屏问题(How To Fix Firefox Black Screen Issue)
方法 3：禁用 Firefox 扩展(Method 3: Disable Firefox Extensions)
在Firefox(Firefox)浏览器上启用的加载项可能会干扰网站并且不允许视频播放。请按照以下步骤禁用附加组件并修复 Firefox 无音频和不播放视频(fix Firefox no audio & not playing videos)问题：
1. 启动Firefox及其菜单( menu)。在这里，单击附加组件和主题( Add-ons and Themes )，如下所示。
2. 接下来，单击左侧窗格中的扩展(Extensions)以查看附加扩展列表。
3. 单击每个加载项旁边的三个点，然后选择(three dots )删除(Remove)。例如，我们在随附的屏幕截图中删除了 YouTube(Enhancer for YouTube)扩展的 Enhancer。
4. 删除不需要的加载项后，重新启动(restart)浏览器并验证问题是否已解决。
如果Firefox无法播放视频问题仍然存在，您也可以清除浏览器缓存和 cookie。
方法 4：删除浏览器缓存和 Cookie(Method 4: Delete Browser Cache and Cookies)
如果浏览器的缓存文件和 cookie 损坏，可能会导致Firefox无法播放视频错误。以下是从Firefox中删除缓存和 cookie 的方法：
1. 打开火狐。(Firefox.)像之前一样转到Side menu > Settings 。
2. 接下来，单击左侧窗格中的隐私和安全性。( Privacy and Security)它由一个锁定图标指示，(lock icon,)如下图所示。
3. 然后，向下滚动到Cookies 和站点数据(Cookies and Site Data)选项。单击突出显示的清除数据。( Clear Data )
4. 接下来，在随后的弹出窗口中选中Cookie 和站点数据(Cookies and Site Data)以及缓存的 Web 内容(Cached Web Content)旁边的框。
5. 最后，单击清除(Clear)并重新启动(Restart)网络浏览器。
检查上述方法是否可以解决Firefox 无法播放视频的问题。( Firefox not playing videos. )如果没有，请转到下一个解决方案。
方法 5：在 Firefox 上允许自动播放(Method 5: Allow Autoplay on Firefox)
如果您遇到“无法在Firefox上播放(Firefox)Twitter视频”的问题，那可能是因为您的浏览器未启用自动播放。(Autoplay)以下是修复Firefox不播放视频错误的方法：
1.使用Firefox(Firefox)访问不播放视频的网站(website)。这里以Twitter为例。
2. 接下来，单击锁定图标(Lock icon )将其展开。在这里，单击下面突出显示的侧向箭头。(sideward arrow)
3. 然后，选择更多信息(More information)，如下所示。
4. 在页面信息(Page Info)菜单中，转到权限(Permissions)选项卡。
5. 在自动播放部分下，取消选中(Autoplay)使用默认值( Use default.)旁边的框。
6. 然后，单击允许音频和视频。 ( Allow Audio and Video. )为清楚起见，请参阅下图。
为所有网站启用自动播放(Enable Autoplay for All Websites)
您还可以确保默认情况下所有网站都允许使用自动播放(Autoplay)功能，如下所示：
1. 按照方法 4(Method 4)中的说明导航到Side menu > Settings> Privacy and Security。
2. 向下滚动到权限(Permissions)并单击自动播放设置(Settings)，如突出显示的那样。
3. 在这里，确保启用了允许音频和视频(Allow Audio and Video)。如果没有，请从下拉菜单中选择它，如下图所示。
4. 最后，重启(restart)浏览器。检查“视频无法在 Firefox 上播放”(videos not playing on firefox’)问题是否已解决。如果不是，请阅读下文。
另请阅读：(Also Read:) 修复 Firefox 中未找到服务器的错误(Fix Server Not Found Error in Firefox)
方法 6：允许 Cookie、历史记录和弹出窗口(Method 6: Allow Cookies, History, and Pop-ups)
某些网站要求您的浏览器允许使用 cookie 和弹出窗口来传输数据和音频视频内容。按照此处编写的步骤在 Firefox 上允许 cookie、历史记录和弹出窗口：
允许 Cookie(Allow Cookies )
1. 启动Firefox浏览器并导航到Side menu > Settings >隐私和安全( Privacy and security)，如前所述。
2. 在Cookie 和站点数据(Cookies and Site Data)部分下，单击所示的管理例外(Manage exceptions )。
3. 在这里，请确保没有将网站添加到阻止 cookie的例外列表中。(list of exceptions)
4. 不离开此页面，进行下一步。
允许历史(Allow History)
1. 在同一页面上，向下滚动到历史记录(History)部分。
2.从下拉菜单中选择记住历史记录。(Remember History)
3. 在不退出设置页面的情况下进行下一步。
允许弹出窗口(Allow Pop-Ups )
1. 返回隐私和安全页面(Privacy and Security page)的权限(Permissions)部分。
2.在这里，取消选中阻止弹出窗口( Block pop-up windows )旁边的框，如下所示。
执行上述步骤后，尝试在Firefox上播放视频。
如果Firefox视频无法播放的问题仍然存在，请使用后续方法刷新Firefox并重新启动计算机。
方法 7：刷新 Firefox(Method 7: Refresh Firefox)
当您使用刷新 Firefox(Refresh Firefox)选项时，您的浏览器将被重置，可能会修复您当前遇到的所有小故障。以下是刷新 Firefox(Refresh Firefox)的方法：
1. 在Firefox浏览器中，进入Side menu > Help,如下图所示。
2. 接下来，单击更多(More) 故障排除信息(Troubleshooting Information)，如下所示。
3.屏幕上显示故障排除信息(Troubleshooting Information)页面。最后，点击Refresh Firefox，如下图所示。
受到推崇的：(Recommended:)
我们希望本指南对您有所帮助，并且您能够修复 Firefox 无法播放视频的问题( fix Firefox not playing videos issue)。另外，让我们知道哪种方法最适合您。最后，如果您对本文有任何问题或建议，请随时在下面的评论部分中提出。
How to Fix Firefox Not Playing Videos (2022)
The Mozilla Foundation develоped Mozillа Firefox as аn open-sourcеd 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 popularіty of Firefox declined when Google Сhrome was rеleased. Since then, both have bеen 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. Go to the Start menu > Power > Restart as depicted.
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 by clicking the three-dashed icon. Select Help as shown below.
2. Next, click on About Firefox as follows.
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. Lastly, restart the browser.
If you still face the same issue, try the next fix.
Method 2: Turn Off Hardware Acceleration
Hardware 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. Launch Firefox and open the menu as before. Select Settings, as shown in the image below.
2. Then, uncheck the box next to Use recommended performance settings under the Performance tab.
3. Next, uncheck the box next to Use hardware acceleration when available.
4. Lastly, restart Firefox. Check if Firefox can play videos.
Also Read: 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. Launch Firefox and its menu. Here, click on Add-ons and Themes as depicted below.
2. Next, click on Extensions from the left pane to see the list of add-on extensions.
3. Click on the three dots next to each add-on and then select Remove. As an example, we have removed Enhancer for 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. Go to the Side menu > Settings as you did earlier.
2. Next, click on Privacy and Security from the left pane. It is indicated by a lock icon, as shown in the image below.
3. Then, scroll down to the Cookies and Site Data option. Click on Clear Data as highlighted.
4. Next, check the boxes next to both, Cookies and Site Data and Cached Web Content in the pop-up window that follows.
5. Lastly, click on Clear and 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.Visit the website where videos are not playing using Firefox. Here, Twitter is shown as an example.
2. Next, click on the Lock icon to expand it. Here, click on the sideward arrow as highlighted below.
3. Then, select More information as shown below.
4. In the Page Info menu, go to the Permissions tab.
5. Under the 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. Navigate to the Side menu > Settings> Privacy and Security as instructed in Method 4.
2. Scroll down to Permissions and click on Autoplay Settings, as highlighted.
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. Finally, restart the browser. Check if the ‘videos not playing on firefox’ issue has been resolved. If it isn’t, read below.
Also Read: Fix Server Not Found Error in 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 and navigate to Side menu > Settings > Privacy and security as explained previously.
2. Under the Cookies and Site Data section, click on Manage exceptions as depicted.
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 section.
2. Choose to Remember History from the drop-down menu.
3. Move to the next step without exiting the settings page.
Allow Pop-Ups
1. Go back to the Privacy and Security page to the Permissions section.
2. Here, uncheck the box next to Block pop-up windows as shown below.
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 the Firefox browser, go to the Side menu > Help, as shown below.
2. Next, click on More Troubleshooting Information as depicted below.
3. Troubleshooting Information page is displayed on the screen. Finally, click on Refresh Firefox, as shown below.
Recommended:
We hope that this guide was helpful and you were able to 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.
