Mozilla Firefox cannot load the XPCOM plug-in solution

Mozilla Firefox ranks third in the list of browser users such as Google Chrome, Safari, Opera, etc. But sometimes while opening Firefox users complain with error message "Cannot load XPCOM!". This error does not allow Mozilla Firefox to open at all. If you are one of the users looking for emergency solutions, you have come to the right place.

Quick Fix——

1. Try restarting the device once. Then, try opening Firefox again.

2. Check the Internet connection.

Fix 1 – Refresh Firefox

Try refreshing Firefox before doing anything else.

1. You must press ⊞Win key R.

2. In the running terminal, paste this content and press Enter.

应用程序向导

#This will open programs and features.

3. In this list of installed applications, right-click " Mozilla Firefox (x64 en-US) " and click "Uninstall".

4. In the Firefox Uninstaller window, click "Refresh Firefox".

This will automatically refresh Firefox in the background. After refreshing, Firefox will open automatically.

Test if this works.

Fix 2 – Uninstall Firefox and perform a clean installation

The best way to resolve this issue is to uninstall Firefox from your system and reinstall it.

Step 1 – Uninstall FIREFOX

1. The first thing you have to do is press the Windows key and X keys at the same time.

2. Then, click "Applications and Features" to enter the settings page.

3. When you reach the Settings window, scroll down to " Mozilla Firefox (x64 en-US)".

You will see Mozilla Firefox in the search results.

4. Next, click on the Three dots (⋮) menu and click "Uninstall".

5. Additionally, click on "Uninstall" to completely uninstall the browser from your device.

6. Now, click “Next” in the Firefox Uninstaller.

#Now, follow the steps to completely uninstall Firefox from your device.

7. After uninstalling Firefox, return to the "Settings" page.

8. Look for the " Mozilla Maintenance Service" application. Then, click on the three-dot menu and click "Uninstall".

9. Click "Uninstall" again.

Then, close the settings page after uninstalling the app.

Step 2 - Clear Temporary Files

Clearing temporary files should remove the corrupted Firefox files.

1. First, press the Windows key and R key at the same time.

2. Then, enter this code in the "Run" panel and press Enter key.

C:\Users\%username%\AppData\Local\Mozilla\Firefox

[

If you are unable to access the Mozilla folder from the Run Terminal, follow these steps -

A. Open File Explorer.

Bay. When File Explorer opens, click the three-dot( ⋯ ) option on the menu bar.

C. Then, click "Options".

d. In the Folder Options screen, go to the View tab.

e. After that, toggle the "Show hidden files, folders and drives" menu.

F。最后，点击“应用”和“确定”保存此修改。

这将帮助您查看隐藏的文件和文件夹。

G。然后，往这边走——

C:\Users\你的用户名\AppData\Local\Mozilla\Firefox

这里，“您的用户名”代表您在系统上的帐户名。

]

3.从 Firefox 文件夹中删除所有内容。

4.在此之后，右键点击⊞Win 并点击“运行”。

5. 之后，输入此代码并按Enter以访问 Temp 文件夹。

%温度%

6. 当 Temp 文件夹打开时，使用鼠标选择您在那里看到的所有内容。

7. 之后，按“删除”键从 Temp 文件夹中删除所有内容。

8. 在文件资源管理器屏幕中，朝这个方向前进——

C:\Windows\Temp

9. 在这里您会注意到几个文件夹和日志文件。选择所有内容并点击bin 图标以删除所有内容。

完成后，关闭文件资源管理器窗口。

第 3 步 – 下载并安装 FIREFOX

1. 现在，下载并安装最新版本的Mozilla Firefox。

2. 然后，只需运行安装文件。

现在，按照屏幕上的说明完成安装过程。

安装完成后，打开 Firefox 并测试它是否有效。如果“无法加载 XPCOM！” 仍然出现，去寻找下一个解决方案。

修复 3 – 创建新的 Firefox 配置文件

这可能是您的个人资料损坏的问题。因此，您可以创建一个新的 Firefox 配置文件。

1. 右键单击​​⊞ Win 键 ，然后点击“运行”。

2. 此外，写下这个并点击“ OK ”。

firefox.exe -p

3. 当 Firefox-Choose User Profile 页面打开时，点击“ Create Profile... ”。

4. 然后，点击“下一步”进入配置文件创建步骤。

5. 此外，在框中写下您喜欢的用户名（如 - 新用户等）。

6. 最后，点击“完成”完成该过程。

7. 完成最后一步后，确保选中“使用选定的配置文件而不在启动时询问”框。

8. 最后，点击“启动 Firefox ”立即启动 Firefox。

启动后，测试浏览器是否正常工作。如果它工作得很好，你可以像以前一样自由地恢复你的工作。

此外，您可以完全删除旧配置文件并使用新配置文件以避免任何进一步的问题。

修复 4 – 检查待处理的 Windows 更新

一些用户指责此问题的暂停 Windows 更新。

1. 打开设置应用程序。

2. 在左侧，点击“ Windows 更新”。

3.接下来，点击“检查更新”。

Windows 将检查挂起的更新并相应地下载它。

4. After downloading the update, click "Restart now".

This will reboot the system and complete the installation process.

Fix 5 – Disable third-party antivirus software

You should disable antivirus software in the background and test whether it interferes with Firefox.

1. First, click the arrow icon on the taskbar.

2. Then, right-click on your antivirus and click "Pause Protection" to limit the antivirus very briefly.

Then just launch Firefox and test if it works.

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