您是否对^(Are)Firefox中没有音频内容感到沮丧？如果您在Windows 10中遇到^{(Windows 10)}Firefox无声音问题，我们随时为您提供帮助。您可能会喜欢在您喜欢的浏览器中观看音频和视频剪辑。但是，浏览器可能与Windows 10 PC中的音频问题有关。Firefox也不例外。如果您遇到Firefox 声音^{(Firefox sound)}无法正常工作的问题，本指南肯定会为您提供帮助。继续阅读文章以修复Firefox 音频^{(Firefox audio)}无法在Windows 10上运行的问题。

如何修复 Firefox 中没有声音的问题^{(How to Fix No Sound in Firefox)}

Mozilla已宣布，如果Firefox中的任何背景选项卡（具有音频内容）在特定时间未与用户交互，则Firefox将不会播放声音。^{(play sound)}在另一种情况下，Firefox会降低该特定选项卡或所有其他选项卡的混音器。^{(audio mixer)}他们的公告称，

在用户通过鼠标点击、可打印按键或触摸事件与页面交互之前发生的任何播放都被视为自动播放，如果可能听到，则将被阻止。^{(Any playback that happens before the user has interacted with a page via a mouse click, printable key press, or touch event, is deemed to be autoplay and will be blocked if it is potentially audible.)}

除此之外，还有其他一些原因导致Firefox没有声音 Windows 10 问题。它们在下面列出。

• 音频混合器^{(Audio Mixer)}已自动/无意地降低。
• Firefox 中的缓存/cookie 损坏。
• 浏览器中存在冲突的加载项/主题。
• 浏览器中的音频权限被阻止。
• 过时的音频驱动程序。
• Firefox 安装^{(Firefox installation)}文件已损坏。
• 过时的浏览器。

不过，您可以按照以下说明的故障排除方法轻松修复Firefox无法播放声音的问题。^(Firefox)

在本节中，我们编制了一系列方法，可帮助您修复Firefox 声音^{(Firefox sound)}无法正常工作的问题。按照相同顺序按照说明的方法进行操作，以获得完美的结果。

基本故障排除^{(Basic Troubleshooting)}

在进入高级故障排除方法的下一部分之前，这里有一些基本的故障排除技巧，它们将帮助您通过非常简单的步骤解决Firefox 音频无法正常工作的问题。^{(Firefox audio)}

• 重新启动电脑。
• 检查音频是否在其他Firefox站点上运行良好。
• 确保没有其他浏览器正在使用音频实用程序。关闭除^(Close)Firefox之外的所有其他后台任务。
• 如果您在计算机上使用Adob​​e Flash 插件^{(Adobe Flash plugin)}，请确保它是最新的或尝试重新安装它。
• 尝试连接不同的音频设备。

不过，如果您遇到Firefox无法播放声音的问题，您可以切换到下面列出的高级故障排除方法。

方法一：修改混音器音量^{(Method 1: Modify Audio Mixer Volume)}

当您为任何应用程序安装更新或安装任何程序时，您的音频设置可能会被调整，导致Firefox 浏览器^{(Firefox browser)}没有声音。您可以按照以下说明手动将音量调高。

1. 右键单击​​屏幕右下角的扬声器图标。^{(Speakers )}

2. 然后，选择突出显示的打开音量混合器选项。^{(Open Volume mixer )}

3. 确保将设备、应用程序和 Firefox音频级别的音频级别设置为^{(Device, Application, and Firefox)}最大值^{(maximum )}，如图所示。

注意：^(Note:)您也可以根据需要调整音频电平。

方法 2：运行 Windows 声音疑难解答^{(Method 2: Run Windows Sound Troubleshooter)}

如果硬件部分^{(hardware part)}有任何故障或错误，您可能会遇到Firefox 声音^{(Firefox sound)}无法正常工作的问题。对其进行故障排除将帮助您解决相同的问题。按照以下说明执行。

1. 按Windows 键。^{(Windows key.)}在搜索栏中键入疑难解答设置并将其打开。^{(Troubleshoot settings )}

2. 现在，单击附加疑难解答，如下图所示。^{(click on Additional troubleshooters as depicted below.)}

3. 现在，选择播放声音，^{(Playing Sound, )}它显示在Get up and running部分下，如图所示。

4. 现在，选择运行疑难解答^{(Run the troubleshooter)}。

5. 选择您要排除故障的音频设备，然后单击^{(audio device)}下一步^(Next)。

6.等到^(Wait)扫描过程完成，然后单击应用此^{(Apply this )}修复程序。然后，按照连续提示中给出的说明进行操作。

7、最后重启电脑^{(restart your PC)}，修复Windows 10 Firefox无声音问题。

另请阅读：^{(Also Read:)}如何修复 Firefox^{(Fix Firefox)}不加载^(Loading)页面

方法 3：在故障排除模式下重新启动 Firefox^{(Method 3: Restart Firefox in Troubleshoot Mode)}

要修复Firefox^{(Firefox problem)}没有声音的问题，请尝试在故障排除模式下^{(troubleshoot mode)}重新启动它。这将禁用所有扩展，关闭硬件加速^{(hardware acceleration)}，并使用默认的工具栏^{(use default toolbar)}设置和主题。这样做将解决所有浏览器冲突。按照^(Follow)指示进行。

1. 按Windows 键^{(Windows key)}。输入Firefox并打开它。

2. 单击应用程序菜单^{(Application Menu)}。

3. 选择帮助^(Help)选项。

4. 单击故障排除模式^{(Troubleshoot Mode)}。

注意：^(Note:)您也可以在打开Firefox时按^(Firefox)Shift 键^{(Shift key)}以在故障排除模式下启动它。

5. 单击重新启动^(Restart)确认提示。

6.再次点击^(Again)Open确认提示。

注意：^(Note:)要关闭故障排除模式，请按照步骤 1 和 2^{(Steps 1 & 2)}并单击关闭故障排除模式^{(Turn Troubleshoot Mode off)}。

方法 4：在 Firefox 中允许音频权限^{(Method 4: Allow Audio Permissions in Firefox)}

如果自动播放^(Autoplay)音频设置在Firefox中被阻止，您可能会在新的自动选项卡中遇到此问题。在这里，我们有一些小技巧可以在Firefox中允许音频权限。

1. 打开火狐^{(Firefox )}浏览器并点击应用程序菜单^{(Application Menu)}。

2. 然后，如图所示选择设置^{(Settings )}选项。

3. 现在，单击隐私和安全^{(Privacy & Security )}选项卡并向下滚动到权限^{(Permissions )}部分。

4. 现在，单击自动播放^{(Autoplay, )}旁边的设置...^{(Settings… )}按钮，如上图所示。

5. 选择所有网站默认^{(Default for all websites )}菜单下的允许音频和视频^{(Allow audio and video )}选项。

6. 最后，单击保存更改^{(Save Changes )}按钮。

另请阅读：^{(Also Read:)} Fix Firefox 已经在运行

方法 5：在 Firefox 中删除浏览器缓存^{(Method 5: Remove Browser Cache in Firefox)}

Firefox 中临时损坏的浏览器缓存和 cookie^{(corrupt browser cache and cookies)}导致Firefox^{(Firefox cause)}没有声音问题^{(Firefox issue)}。以下是删除Firefox中^(Firefox)浏览器缓存^{(browser cache)}的一些说明。

1. 启动火狐^{(Firefox )}浏览器。

2. 然后，单击打开应用程序菜单^{(Open Application Menu )}图标，如下所示。

3. 然后，如图所示从列表中选择设置^{(Settings )}选项。

4. 现在，单击 左侧窗格中的隐私和安全 选项卡。^{(Privacy & Security )}

5. 在右窗格中，向下滚动到 Cookie 和站点数据^{(Cookies and Site Data)} 部分。

6. 现在，单击 清除数据... ^{(Clear Data… )}选项。

7. 在提示窗口^{(prompt window)}中，取消选中 Cookie 和站点数据 ^{(Cookies and Site Data )}框并确保选中 缓存的 Web 内容^{(Cached Web Content)} 框，如图所示。

注意：^(Note:) 清除 Cookie 和站点数据^{(Cookies and Site Data)} 将使您退出网站、删除离线 Web 内容^{(offline web content)}并清除 cookie。而清除 缓存的 Web 内容^{(Cached Web Content)} 不会影响您的登录。

8. 然后，单击 清除 ^(Clear )按钮以清除Firefox缓存的网页内容。

9. 现在，单击 Manage Data... 按钮，如图所示。

10. 在 搜索网站^{(Search websites)} 字段中输入您要删除其 cookie 的网站名称。

11A。选择网站并单击 删除选定项^{(Remove Selected)} 以删除选定的数据。

11B。以另一种方式，选择 全部删除^{(Remove All)} 以删除所有 cookie 和存储数据。

12. 最后，单击如图所示的 Save Changes 按钮。

13.在提示中单击立即清除。^{(Clear Now)}

14. 退出浏览器^(browser)并 重新启动您的 PC^{(reboot your PC)}。

方法 6：关闭硬件加速（如果适用）^{(Method 6: Turn off Hardware Acceleration (If Applicable))}

硬件加速^{(hardware acceleration)}设置旨在在您的浏览器中执行任何图形任务。如果浏览器有任何冲突，此设置可能会干扰正常进程并导致^{(process and cause)}此问题。您可以通过关闭硬件加速选项^{(Hardware Acceleration option)}轻松解决它们，如下所示。

1. 导航到 Firefox 浏览器并单击 菜单 ^(Menu )图标，如图所示。

2. 现在， 从下拉列表中选择设置选项，如图所示。^{(Settings )}

3. 在常规^{(General )}选项卡中，向下滚动到 性能 ^{(Performance )}菜单。

4. 然后，取消选中以下选项。

• 使用推荐的性能设置^{(Use recommended performance settings)}。
• 可用时使用硬件加速 ^{(Use hardware acceleration when available )}

5. 同时按Ctrl + Shift + Q keys退出浏览器。

6. 最后，重新启动Firefox。

另请阅读：^{(Also Read:)} 修复^{(Fix Server)}Firefox中未找到服务器的错误^{(Found Error)}

方法 7：更新扩展（如果适用）^{(Method 7: Update Extensions (If Applicable))}

如果您的浏览器中有任何不兼容的扩展，您将无法在Firefox中看到声音。已发布更新以修复冲突加载项中的错误。以下是更新Firefox扩展的一些说明。

1. 和之前一样，单击 Firefox中的^(Firefox)菜单 ^(Menu )图标 。

2. 然后，如图所示选择 附加组件和主题^{(Add-ons and themes )}选项。

3. 然后，点击 齿轮图标^{(gear icon)}。

4. 现在， 从下拉列表中选择检查更新 选项，如图所示。^{(Check for Updates )}

5A。如果有更新待处理，请按照屏幕上的说明进行更新。

5B。如果扩展已经更新，它将显示未 找到更新^{(No updates found)} 消息。

方法 8：禁用扩展（如果适用）^{(Method 8: Disable Extensions (If Applicable))}

如果更新Firefox扩展无法解决问题，请尝试按照以下说明禁用扩展。

1. 按照上述方法，导航到 Firefox 附加组件和主题^{(Firefox Add-ons and themes)} 页面。

2. 然后，关闭^{(toggle off)}扩展（例如，Grammarly for Firefox）。

3. 对所有扩展程序一一重复相同的步骤，并检查是哪个扩展程序导致您出现问题。

注意：^(Note:)如果您发现有问题的扩展名，请选择 删除 ^(Remove )选项，如图所示将其删除。

4. 刷新您的Firefox 浏览器^{(Firefox browser)}。

另请阅读：^{(Also Read:)} 修复^(Fix)Firefox上的连接不安全错误^{(Secure Error)}

方法 9：更新或回滚音频驱动程序^{(Method 9: Update or Roll Back Audio Drivers)}

硬件设备^{(hardware device)}使用设备驱动程序^{(device driver)}文件与操作系统通信^(System)。如果您的 PC 中有过时的音频驱动程序，您可能会遇到此问题。要更新音频驱动程序，请按照以下说明进行操作。如果更新驱动程序无法修复Firefox在^(Firefox)Windows 10上没有声音的问题，请尝试回滚驱动程序。

选项 I：更新音频驱动程序^{(Option I: Update Audio Drivers)}

1.在Windows 10 搜索菜单中输入^{(Windows 10 search menu)}设备管理器^{(Device Manager)}并打开它。

2. 双击音频输入和输出^{(Audio inputs and outputs)}将其展开。

3. 现在，右键单击声卡驱动程序^{(audio card driver)}，例如麦克风（2-高清音频设备）^{(Microphone (2- High Definition Audio Device))}  ，然后单击更新驱动程序^{(Update driver)}。

4. 选择自动搜索驱动程序^{(Search automatically for drivers)}。

5A。如果驱动程序过时，驱动程序将更新到最新版本。

5B。如果它们已经处于更新阶段，屏幕将显示以下消息，已安装适用于您设备的最佳驱动程序^{(The best drivers for your device are already installed)}。

6.重新启动^{(Restart )}计算机，检查是否修复了Firefox 声音^{(Firefox sound)}不工作的问题。

选项 II：回滚音频驱动程序^{(Option II: Roll Back Audio Drivers)}

按照以下步骤回滚驱动程序更新以修复Firefox 声音^{(Firefox sound)}无法正常工作的问题。

1.在Windows 搜索栏中^{(Windows search bar)}键入设备管理器^{(Device Manager)}，然后像之前一样单击打开。^{(Open )}

2. 双击左侧面板中的音频输入和输出将其展开。^{(Audio inputs and outputs)}

3. 右键单击​​音频驱动程序^{(audio driver)}，然后单击属性^(Properties)。

4. 切换到驱动程序选项卡^{(Driver tab)}并选择回滚驱动程序^{(Roll Back Driver)}，如突出显示的那样。

注意^(Note)：如果您的计算机中的“回滚驱动程序^{(Roll Back Driver)}”选项显示为灰色，则表示您的计算机没有预装驱动程序文件或原始驱动程序文件丢失。在这种情况下，请尝试本文中讨论的其他方法。

5. 单击确定^(OK)以应用此更改。

6. 最后，在确认提示中单击是。^(Yes)

7.重新启动^(Restart) 您的 PC^{(your PC)}并检查您是否已修复Firefox 声音^{(Firefox sound)}无法正常工作的问题。

方法10：更新火狐^{(Method 10: Update Firefox)}

一个过时的火狐^(Firefox)不仅面临火狐^(Firefox)无法播放声音^{(play sound)}，还有一些其他的音频和视频问题。始终^(Always)确保您使用更新版本的浏览器以避免任何冲突问题。按照以下说明更新Firefox。

1. 打开Firefox并单击应用程序菜单^{(Application Menu )}，如图所示。

2. 现在，选择帮助^{(Help )}选项，如下所示。

3. 然后，点击关于 Firefox^{(About Firefox )}，如下图所示。

4A。如果浏览器更新到最新版本，它将显示消息Firefox is up-to-date。

4B。如果浏览器已过时，请单击重新启动以更新 Firefox^{(Restart to update Firefox)}选项。

更新Firefox后，检查是否修复了Firefox Windows 10 没有声音的问题。

另请阅读：^{(Also Read:)}修复 Google Chrome 未更新

方法 11：刷新 Firefox^{(Method 11: Refresh Firefox)}

刷新浏览器将删除Firefox 扩展和主题^{(Firefox Extensions and themes)}、网站^(Website)权限、修改^(Modified)的首选项、添加的搜索^{(Added search)}引擎、DOM 存储^{(DOM storage)}、安全证书和设备设置^{(security certificate and device settings)}、下载^(Download)操作、用户^(User)样式和工具栏^(Toolbar)自定义。这将帮助您修复Firefox在^(Firefox)Windows 10中没有声音的问题。这是如何做到的。

注意：^{(Note: )}所有Firefox 配置文件^{(Firefox profile)}数据都将存储在Desktop的^(Desktop)Old Firefox Data文件夹中。您可以在必要时将您的Firefox 数据恢复到新的配置文件中。^{(Firefox data)}如果您觉得没有必要，也可以将其删除。

1. 启动Firefox并单击菜单^{(Menu )}图标，如图所示。

2. 现在，单击帮助^{(Help )}选项，如图所示。

3. 现在，选择更多故障排除信息^{(More troubleshooting information )}选项，如图所示。

4. 现在，单击突出显示的刷新 Firefox...^{(Refresh Firefox… )}选项。

5. 然后，如图所示单击刷新 Firefox^{(Refresh Firefox )}按钮。

6. 然后，在导入向导^{(Import Wizard)}窗口中单击完成。^{(Finish )}

7. 最后，点击Let’s go! 继续浏览您的浏览的选项。

方法 12：删除 Firefox 首选项文件^{(Method 12: Remove Firefox Preference Files)}

所有Firefox设置和数据都存储在Firefox Preference文件中。如果这些文件中存在任何冲突，您将面临此问题。不用担心。您可以按照以下说明轻松删除Firefox 首选项^{(Firefox preference)}文件以修复Firefox 浏览器无声音问题。^{(Firefox browser)}

1. 打开Firefox并单击应用程序菜单^{(Application Menu )}按钮，如图所示。

2. 现在，选择帮助^{(Help )}选项，如下所示。

3. 然后，选择更多故障排除信息^{(More troubleshooting information )}选项，如图所示。

4. 现在，单击更新文件夹下的^{(Update Folder)}打开文件夹^{(Open Folder )}按钮，如图所示。

5. 如果您有prefs.js文件，请删除或重命名它们。

6. 最后，重新启动Firefox并检查Windows 10中的Firefox无声音问题^{(sound problem)}是否已解决。

另请阅读：^{(Also Read:)}修复 Chrome 阻止下载问题

方法 13：重新安装 Firefox^{(Method 13: Reinstall Firefox)}

如果Firefox没有正确安装或安装文件损坏，您将面临没有声音的问题^{(sound problem)}。要解决Firefox 声音^{(Firefox sound)}无法正常工作的问题，您可以尝试按照以下说明重新安装浏览器。

1. 按Windows键并单击设置^(Settings)图标。

2. 单击应用程序。^(Apps.)

3. 向下滚动并选择Mozilla Firefox。

4. 点击卸载^(Uninstall)。

5. 再次单击弹出窗口中的卸载。^(Uninstall)

6.在 用户帐户控制^{(User Account Control)}提示中单击是。^(Yes)

7. 现在，单击Mozilla Firefox 卸载^{(Mozilla Firefox Uninstall)}向导中的^(Wizard)Next > 按钮 。 

8. 如果出现提示，单击确定^{(OK )}并关闭所有Firefox进程。

9. 现在，点击卸载^(Uninstall)。

10. 最后，单击完成^(Finish) 关闭向导。

10. 在Windows 搜索栏中键入^{(Windows search bar)}%localappdata%并单击打开^(Open)。

9. 现在，向下滚动并单击Mozilla文件夹。然后，单击突出显示的删除^{(Delete )}选项。

10. 再次，在Windows 搜索栏中键入^{(Windows search bar)}%appadata%并打开它。

11. 向下滚动并单击Mozilla文件夹。然后，单击前面所做的删除选项。^{(Delete )}

12. 然后，重新启动您的 PC^{(reboot your PC)}。

13.从官网下载^{(official website)}火狐浏览器^{(Firefox browser)}。

14. 现在，导航到下载^{(Downloads )}并启动安装程序文件。

15.在提示中单击是。^(Yes)

16. 现在，在以下提示中单击重新安装。^(Re-install)

17. 最后，启动一个网页并检查您是否修复了Firefox 声音^{(Firefox sound)}不工作的问题。

推荐的：^{(Recommended:)}

• 如何修复 Valorant FPS Drops
• 如何在Windows 10上卸载^{(Windows 10)}Chromium
• 如何修复 Google Chrome 403 错误
• 修复 Firefox 连接重置错误

我们希望本指南对您有所帮助，并且您能够修复Firefox 浏览器中没有声音的^{(no sound in Firefox)}问题。让我们知道哪种方法最适合您。请^(Feel)随时通过下面的评论部分与我们联系，提出您的疑问和建议。

Fix No Sound in Firefox on Windows 10

Are you frustrated with no audio cоntent in Firefox? If you are facing Firefox no sound issue in Windows 10, we are here to help you. You may enjoy watching audio and νideo clips in your faνorite browser. However, browsers may be аssociated with audio problems in your Windows 10 PC.. Firefox is not an exception. If you are facing Firefox sound not working issue, this guide will help you for sure. Continue reading the article to fix Firefox audio not working on Windows 10 issue.

How to Fix No Sound in Firefox

Mozilla has announced that Firefox won’t play sound if there is any background tab in Firefox (that has audio content) not interacted by the user for a particular time. In another case, Firefox lowers the audio mixer for that specific tab or all other tabs. Their announcement states,

Any playback that happens before the user has interacted with a page via a mouse click, printable key press, or touch event, is deemed to be autoplay and will be blocked if it is potentially audible.

Apart from this, a few other reasons contribute to the Firefox no sound Windows 10 issue. They are listed below.

• Audio Mixer has been lowered out automatically/unintentionally.
• Corrupt cache/cookies in Firefox.
• Conflicting add-ons/themes in the browser.
• Audio permissions in the browser are blocked.
• Outdated audio drivers.
• Firefox installation files are corrupt.
• Outdated browser.

Nevertheless, you can easily fix Firefox won’t play sound issue by following the troubleshooting methods as instructed below.

In this section, we have compiled a list of methods that will help you fix Firefox sound not working issue. Follow the methods as instructed in the same order to attain perfect results.

Basic Troubleshooting

Before you move to the next section of advanced troubleshooting methods, here are a few basic troubleshooting tricks that will help you fix the Firefox audio not working issue with very simple steps.

• Reboot the PC.
• Check if the audio is working well on other Firefox sites.
• Ensure that no other browsers are utilizing audio utility. Close all other background tasks except Firefox.
• If you are using the Adobe Flash plugin on your computer, ensure it is up-to-date or try reinstalling it.
• Try connecting different audio devices.

Still, if you face Firefox won’t play sound issue, you can switch to the below listed advanced troubleshooting methods.

Method 1: Modify Audio Mixer Volume

When you install updates for any application or install any programs, your audio settings may be tweaked, leading to no sound in the Firefox browser. You can manually adjust the volume to higher levels as instructed below.

1. Right-click on the Speakers icon at the bottom right corner of the screen.

2. Then, select the Open Volume mixer option as highlighted.

3. Ensure that the audio levels are set to maximum for Device, Application, and Firefox audio levels as shown.

Note: You can also adjust the audio levels according to your need.

Method 2: Run Windows Sound Troubleshooter

You may face Firefox sound not working issues if there are any glitches or bugs in the hardware part. Troubleshooting it will help you resolve the same. Perform as instructed below.

1. Hit the Windows key. Type Troubleshoot settings in the search bar and open it.

2. Now, click on Additional troubleshooters as depicted below.

3. Now, select Playing Sound, which is displayed under the Get up and running section as shown.

4. Now, select Run the troubleshooter.

5. Select the audio device you want to troubleshoot and click Next.

6. Wait until the scanning process is complete, and then click on Apply this fix. Then, follow the instructions given in the successive prompts.

7. Finally, restart your PC to fix Firefox no sound issue on Windows 10.

Also Read: How to Fix Firefox Not Loading Pages

Method 3: Restart Firefox in Troubleshoot Mode

To fix no sound in Firefox problem, try restarting it in troubleshoot mode. This will disable all the extensions, turn off hardware acceleration, and use default toolbar settings and themes. Doing so will resolve all the browser conflicts. Follow as instructed.

1. Press the Windows key. Type Firefox and open it.

2. Click on the Application Menu.

3. Select the Help option.

4. Click on Troubleshoot Mode.

Note: You can also press the Shift key while opening Firefox to launch it in Troubleshooting mode.

5. Confirm the prompt by clicking on Restart.

6. Again, confirm the prompt by clicking on Open.

Note: To turn off troubleshooting mode, follow Steps 1 & 2 and click on Turn Troubleshoot Mode off.

Method 4: Allow Audio Permissions in Firefox

If the Autoplay audio settings are blocked in Firefox, you may face this issue in new automatic tabs. Here, we have a few short tricks to allow audio permissions in Firefox.

1. Open Firefox browser and click on Application Menu.

2. Then, select the Settings option as depicted.

3. Now, click on the Privacy & Security tab and scroll down to the Permissions section.

4. Now, click on the Settings… button next to Autoplay, as depicted above.

5. Select the Allow audio and video option under Default for all websites menu.

6. Finally, click on the Save Changes button.

Also Read: Fix Firefox is Already Running

Method 5: Remove Browser Cache in Firefox

The temporary corrupt browser cache and cookies in Firefox cause no sound in Firefox issue. Here are a few instructions to delete the browser cache in Firefox.

1. Launch the Firefox browser.

2. Then, click on the Open Application Menu icon as shown below.

3. Then, select the Settings option from the list as depicted.

4. Now, click on the Privacy & Security tab from the left pane.

5. In the right pane, scroll down to the Cookies and Site Data section.

6. Now, click on Clear Data… option.

7. In the prompt window, uncheck the Cookies and Site Data box and ensure you check the Cached Web Content box, as depicted.

Note: Clearing Cookies and Site Data will sign you out from websites, delete offline web content, and clears the cookies. Whereas clearing Cached Web Content will not affect your logins.

8. Then, click on the Clear button to clear the Firefox cached web contents.

9. Now, click on the Manage Data… button as depicted.

10. Type the site name in the Search websites field whose cookies you want to remove.

11A. Select the websites and click on Remove Selected to delete selected data.

11B. In another way, select Remove All to remove all cookies and storage data.

12. Finally, click on the Save Changes button as depicted.

13. Click Clear Now in the prompt.

14. Exit from the browser and reboot your PC.

Method 6: Turn off Hardware Acceleration (If Applicable)

The hardware acceleration settings are intended to carry on any graphical tasks in your browser. If there are any conflicts in the browser, this setting may interfere with the normal process and cause this issue. You can easily resolve them by turning off the Hardware Acceleration option as instructed below.

1. Navigate to the Firefox browser and click on the Menu icon as shown.

2. Now, select the Settings option from the drop-down list as shown.

3. In the General tab, scroll down to the Performance menu.

4. Then, uncheck the following options.

• Use recommended performance settings.
• Use hardware acceleration when available 

5. Quit the browser by pressing Ctrl + Shift + Q keys simultaneously.

6. Finally, relaunch Firefox.

Also Read: Fix Server Not Found Error in Firefox

Method 7: Update Extensions (If Applicable)

If there are any incompatible extensions in your browser, you will face no sound in Firefox. Updates are released to fix the bugs in conflicting add-ons. Here are a few instructions to update Firefox extensions.

1. As you did earlier, click on the Menu icon in Firefox.

2. Then, select the Add-ons and themes option as shown.

3. Then, click on the gear icon.

4. Now, select the Check for Updates option from the drop-down list as shown.

5A. If there is an update pending in action, follow the on-screen instructions to update the same.

5B. If the extensions are already updated, it will display No updates found message.

Method 8: Disable Extensions (If Applicable)

If updating Firefox extensions does not fix the issue, try disabling the extensions as instructed below.

1. As instructed in the above method, navigate to the Firefox Add-ons and themes page.

2. Then, toggle off the extensions (for example, Grammarly for Firefox).

3. Repeat the same steps for all the extensions one by one and check which extension is causing you the problem.

Note: If you have found the problematic extension, then select the Remove option as shown to remove it.

4. Refresh your Firefox browser.

Also Read: Fix Your Connection is not Secure Error on Firefox

Method 9: Update or Roll Back Audio Drivers

The hardware device communicates with the Operating System utilizing device driver files. If there are outdated audio drivers in your PC, you may face this issue. To update the audio drivers, follow the below-mentioned instructions. If updating drivers does not give you a fix to Firefox no sound issue on Windows 10, try rolling back of drivers.

Option I: Update Audio Drivers

1. Type Device Manager in the Windows 10 search menu and open it.

2. Double-click Audio inputs and outputs to expand it.

3. Now, right-click on the audio card driver e.g. Microphone (2- High Definition Audio Device) and click Update driver.

4. Select Search automatically for drivers.

5A. If the driver is outdated, the drivers will be updated to the latest version.

5B. If they are already in an updated stage, the screen displays the following message, The best drivers for your device are already installed.

6. Restart the computer, and check if you have fixed Firefox sound not working issue.

Option II: Roll Back Audio Drivers

Follow these steps to roll back driver updates to fix Firefox sound not working issue.

1. Type Device Manager in the Windows search bar and click on Open as you did earlier.

2. Double-click on the Audio inputs and outputs from the panel on the left to expand it.

3. Right-click on the audio driver and click on Properties.

4. Switch to the Driver tab and select Roll Back Driver, as shown highlighted.

Note: If the option to Roll Back Driver is greyed out in your computer, it indicates that your PC does not have the pre-installed driver files or the original driver files are missing. In this case, try other methods discussed in this article.

5. Click on OK to apply this change.

6. Finally, click on Yes in the confirmation prompt.

7. Restart your PC and check if you have fixed Firefox sound not working issue.

Method 10: Update Firefox

An outdated Firefox not only faces Firefox won’t play sound, but also a few other audios and video issues. Always ensure you use an updated version of browsers to avoid any conflicting problems. Follow the below-mentioned instructions to update Firefox.

1. Open Firefox and click on the Application Menu as shown.

2. Now, select the Help option as highlighted below.

3. Then, click on About Firefox as shown below.

4A. If the browser is updated to its latest version, it will display the message Firefox is up-to-date.

4B. If the browser is outdated, click Restart to update Firefox option.

After updating Firefox, check if you have fixed Firefox no sound Windows 10 issue.

Also Read: Fix Google Chrome Not Updating

Method 11: Refresh Firefox

The refreshing browser will delete the Firefox Extensions and themes, Website permissions, Modified preferences, Added search engines, DOM storage, security certificate and device settings, Download actions, User styles, and Toolbar customizations. This will help you to fix Firefox no sound issue in Windows 10. Here is how to do it.

Note: All the Firefox profile data will be stored in the Old Firefox Data folder in Desktop. You can restore your Firefox data to your new profile whenever necessary. You can also delete it if you find it unnecessary.

1. Launch Firefox and click on the Menu icon as shown.

2. Now, click on the Help option as shown.

3. Now, select the More troubleshooting information option as shown.

4. Now, click on Refresh Firefox… option as highlighted.

5. Then, click on the Refresh Firefox button as shown.

6. Then, click on Finish in the Import Wizard window.

7. Finally, click on Let’s go! option to continue surfing your browsing.

Method 12: Remove Firefox Preference Files

All the Firefox settings and data are stored in Firefox Preference files. If there are any conflicts in these files, you will face this issue. No worries. You can easily remove Firefox preference files to fix no sound in Firefox browser issue by following the below instructions.

1. Open Firefox and click on the Application Menu button as shown.

2. Now, select the Help option as highlighted below.

3. Then, select the More troubleshooting information option as shown.

4. Now, click on the Open Folder button under Update Folder as shown.

5. If you have prefs.js files, delete or rename them.

6. Finally, relaunch Firefox and check if Firefox no sound problem in Windows 10 is solved.

Also Read: Fix Chrome Blocking Download Issue

Method 13: Reinstall Firefox

If Firefox is not installed properly or the installation files are corrupt, you will face the no sound problem. To resolve Firefox sound not working issue, you can try reinstalling the browser as instructed below.

1. Press the Windows key and click on the Settings icon.

2. Click Apps.

3. Scroll down and select Mozilla Firefox.

4. Click Uninstall.

5. Again, click Uninstall in the pop-up.

6. Click Yes in the User Account Control prompt.

7. Now, click on the Next > button in the Mozilla Firefox Uninstall Wizard.

8. If prompted, click on OK and close all the Firefox processes.

9. Now, click on Uninstall.

10. Finally, click Finish to close the wizard.

10. Type %localappdata% in the Windows search bar and click Open.

9. Now, scroll down and click on the Mozilla folder. Then, click on the Delete option as highlighted.

10. Again, type %appadata% in the Windows search bar and open it.

11. Scroll down and click on the Mozilla folder. Then, click on the Delete option as done earlier.

12. Then, reboot your PC.

13. Download the Firefox browser from the official website.

14. Now, navigate to Downloads and launch the installer file.

15. Click Yes in the prompt.

16. Now, click Re-install in the following prompt.

17. Finally, launch a web page and check if you have fixed Firefox sound not working issue.

Recommended:

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• How to Uninstall Chromium on Windows 10
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• Fix Firefox Connection Reset Error

We hope that this guide was helpful and you were able to fix no sound in Firefox browser. Let us know which method worked for you the best. Feel free to reach out to us with your queries and suggestions via the comments section below.

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