Mozilla Firefox is a trusted Web Browser and is compatible with most devices. However, the Couldn’t load XPCOM error message pops up now and then. The XPCOM is a cross-platform component model from the Mozilla Firefox, so the Cannot load XPCOM error disrupts the browsing. You may click on the OK button to close the error message, but you may not be able to use the Firefox app. The article addresses the error and the methods to resolve the XPCOM Firefox error are explained here.
How to Fix Mozilla Firefox Couldn’t Load XPCOM Error on Windows 10
The list of causes for which the XPCOM error occurs on Firefox is given in this section.
- Outdated Firefox- The outdated version of the Firefox app may cause this error.
- Corrupt Firefox User Profile- The User Profile on the Firefox Web Browser may be corrupt or may have malware sources.
- Third-party Extensions on Firefox- The issue with the XPCOM may arise if there are third-party extensions installed on the Firefox app.
- Corrupt System Files- The System files installed locally on your PC may have been corrupt or the PC may be infected with a virus.
Kaedah 1: Kaedah Penyelesaian Masalah Asas
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Mulakan semula PC
There might be some glitches on your PC that prevent you from using the Firefox browser; you can restart your PC to fix the error. Press the Windows kekunci, klik pada Kuasa button at the bottom-left corner, and click on the restart pilihan untuk memulakan semula PC anda.
2. Semak Sambungan Internet
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Ujian kelajuan and assess its quality.
- If the speed is low, try using any other Wi-Fi network for browsing on Firefox.
- Consider changing the data plan of the Internet Connection to a better plan.
3. Switch to Another Web Browser
If the XPCOM error with the Firefox Web Browser is still not resolved, you can try switching to another Web Browser like Google Chrome. Follow the steps below to switch to a different browser:
1. Pelancaran Tetapan dengan menekan Kekunci Windows + I bersama-sama.
2. Klik pada Apps penetapan.
3. Klik pada Aplikasi lalai di sebelah kiri.
4. Scroll down and click on the current Pelayar web.
5. Choose from the option as per your preference.
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4. Padamkan Fail Sementara
The numerous temporary files saved locally on your PC may have disrupted the browsing activity on Firefox. You can read the method to delete the temp files on your PC using the link given here.
5. Membaiki Fail Rosak
The files on your PC may be corrupt and have some issues which may cause the Couldn’t load XPCOM error. Read the article to repair system files on Windows 10 for corrupt files using the link provided here.
6. Kemas kini Windows
In most instances, using an outdated OS may cause issues on the PC; you need to update the Windows on your PC to the latest version to fix this error. Read the article on how to update Windows on your PC using the link given here.
7. Jalankan Pemecah Masalah Kemas Kini Windows
The issues with the Firefox browser can be cleared by using the Windows Troubleshooter on your PC. Read the method to run the Windows Troubleshooter using the link here and fix the error.
8. Disable Antivirus Temporarily (If Applicable)
The third-party security services on your PC may disrupt you from using the Firefox app; you can disable the anti-virus program to fix this error. Implement the steps given in the link here to disable the Anti-virus software on your PC.
9. Lakukan Pemulihan Sistem
If the Firefox app performed better on the previous version of the Windows PC, you can try performing a System Restore on your PC to fix the error. The link which is given here will provide you with the method to perform a System Restore on your PC.
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Method 2: Run Firefox as Administrator
The Couldn’t load XPCOM error might appear if the Firefox is not granted the administrative permissions on your PC. You have to run the Firefox app as an Administrator on your Pc to fix the error.
1. Tekan butang Kunci Windows, jenis firefox dan klik pada Jalankan sebagai pentadbir pilihan.
Method 3: Update Firefox Browser
Using an outdated version of the Firefox Web Browser can be a reason for this error. Follow the steps below to update the Firefox app on your PC.
1. Tekan Kunci Windows, jenis Firefox dan klik pada Buka.
2. Klik pada Buka Menu Aplikasi button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Tetapan option on the list displayed.
3. Di dalam Umum tab, klik pada Semak kemas kini butang dalam Kemas kini Firefox bawah seksyen ini.
4. Anda akan melihat Firefox is up to date message on the Firefox Updates section.
Catatan: If there is an update for the Firefox browser, you will be prompted accordingly.
Method 4: Refresh Firefox Browser
To fix the Couldn’t load XPCOM error on the Firefox app, you can refresh Firefox entirely.
1. Pelancaran Firefox aplikasi daripada Carian Windows bar.
2. Seterusnya, klik pada Buka Menu Aplikasi butang dan klik pada Bantuan option on the list displayed.
3. Klik pada Troubleshoot Mode… dalam Firefox help tingkap.
4. Sekarang, klik pada restart butang pada Mulakan semula Firefox dalam Mod Penyelesaian Masalah tetingkap timbul.
5. Klik pada Muat semula Firefox butang pada Open Firefox in Troubleshoot Mode confirmation window.
6. Kemudian, klik pada Muat semula Firefox butang pada Refresh Firefox to its default settings tingkap.
7. Akhirnya, klik pada Selesai butang pada Import Complete window to Refresh Firefox completely.
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Method 5: Disable Firefox Extensions
The extensions on the Firefox Web Browser can be a reason for the Couldn’t load XPCOM error. You can disable the extensions on the browser to fix the error.
1. Buka Mozilla Firefox aplikasi daripada Carian Windows bar.
2. Klik pada Buka Menu Aplikasi butang dan klik pada Bantuan option on the list displayed.
3. Sekarang, klik pada Troubleshoot Mode… dalam Firefox help tingkap.
4. Klik pada Buka butang pada Mulakan semula Firefox dalam Mod Penyelesaian Masalah tetingkap timbul.
5. Seterusnya, klik pada Buka Menu Aplikasi butang dan klik pada Alat tambah dan tema option on the list.
6. Klik pada Extensions tab on the left pane of the next window and toggle off the add-ons on the window.
7. Kemudian, klik pada tiga titik mendatar button on the add-on and click on the Batalkan button on the list.
8. Klik pada Batalkan button on the confirmation pop-up message window.
Method 6: Create New Firefox Profile
The current User Profile on the Firefox web browser may be corrupt; you can create a new User Profile to fix the Couldn’t load XPCOM error.
Step I: Import Saved Bookmarks
As a first step, you need to import the Bookmarks you have saved on the current User Profile to avoid any loss of data.
1. Buka Mozilla Firefox app.
2. Klik pada Buka Menu Aplikasi butang dan klik pada Penanda buku option in the list displayed.
3. Di dalam Penanda buku menu, klik pada Urus penanda halaman option at the bottom of the list.
4. Di dalam Perpustakaan skrin, klik pada Import dan Sandaran button at the menu bar and click on the Export Bookmarks to HTML… option in the drop-down menu displayed.
5. Di dalam Export Bookmarks File window, browse and select a location, and click on the Jimat button to save the bookmarks file.
Step II: Create New User Profile
This section will introduce the method to create a new User Profile on the Firefox app to fix the Couldn’t load XPCOM error.
1. Pelancaran Firefox aplikasi penyemak imbas.
2. Taipkan mengenai: profil in the URL address bar at the top and press the Masukkan kunci untuk membuka About Profiles tingkap.
3. Klik pada Buat Profil Baru button on the window.
4. Seterusnya, klik pada Seterusnya butang pada Welcome to the Create Profile Wizard.
5. Type a name for the Profile in the Masukkan nama profil baru medan dan klik pada Selesai button in the window to create the Profile.
Catatan: Klik pada Choose Folder… button to change the location for storing the User Profile name instead of the default location.
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Method 7: Reinstall Firefox
The Firefox app installed on your PC might be corrupt or not properly installed. You can reinstall Firefox on your PC to fix the Couldn’t load XPCOM error.
Step I: Uninstall Firefox
The first step is to uninstall the existing version of the Firefox web browser on your PC using the Control Panel.
1. Tekan butang Kunci Windows, jenis panel kawalan dan klik pada Buka.
2. Click on the option kategori dalam Lihat mengikut drop-down menu and click on the Nyahpasang program pilihan dalam Program tajuk.
3. Pilih Mozilla Firefox (x64 en-US) in the list, click on the Uninstall button at the top of the bar and click on the Ya butang pada tetingkap UAC.
4. Kemudian, klik pada Seterusnya butang dalam Mozilla Firefox Uninstall wizard.
5. Seterusnya, klik pada Uninstall button in the next window.
6. Klik pada Selesai button on the last window to completely uninstall the Firefox app.
7. Tekan butang Windows+ E kunci together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox folder.
8. Klik kanan pada Mozilla Firefox folder dan klik pada Padam option on the list to delete the files.
Step II: Reinstall Firefox
The next step to fix the Couldn’t load XPCOM error is to reinstall the Firefox Web Browser on your PC.
1. Tekan Kunci Windows, jenis google chrome dan klik pada Buka.
Catatan: You can use any web browser to download the Firefox browser on your PC.
2. Buka laman web rasmi Penyemak imbas Mozilla Firefox on Google Chrome and click on the Download Firefox button on the window.
3. Double-click on the downloaded executable file Pemasang Firefox.exe to run the installation file.
4. Wait for the installation process to complete.
5. Pelancaran Firefox Web Browser app on your PC.
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Method 8: Modify Tor Web Browser Settings
If you are using the Tor Web browser, in addition to Firefox, the issues on the Tor browser may cause the Couldn’t load XPCOM error. To fix this error, you can try checking for the issues on the Tor browser using Firefox to fix the error.
1. Buka Firefox app.
2. Klik pada Buka Menu Aplikasi butang dan klik pada Tetapan option on the list displayed.
3. Di dalam Umum tab, klik pada Tetapan… butang dalam Tetapan Rangkaian bawah seksyen ini.
4. Pilih Konfigurasi proksi manual pilihan pada Tetapan Sambungan tingkap.
5. Taipkan SOCKS Host: 127.0.0.1 Port: 9050 dalam Proksi HTTP bidang, jenis 8080 dalam Port field, and click on the OK .
6. Kemudian, taip Perihal: config on the search bar of the Firefox browser and click on the Terima Risiko dan Teruskan .
7. Finally, type network.proxy.socks_remote_dns dalam bar carian dan klik pada togol button to set the type of the entry to be benar.
8. Sekarang, taip https://check.torptoject.org/ in the search bar on the Firefox browser and press the Masukkan key to check the issues with the Tor Browser.
Lawatan:
Artikel membincangkan kaedah untuk memperbaiki couldn’t load XPCOM Firefox error on Windows 10 PC. Try implementing the methods discussed in the article to fix the error and please leave your suggestions on the same in the comments section. If you have any queries on the Cannot load XPCOM error, post them in the comments.