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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
1. metodoa: Arazoak konpontzeko oinarrizko metodoak
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Berrabiarazi ordenagailua
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 tekla, egin klik Power button at the bottom-left corner, and click on the Berrabiarazterik zure ordenagailua berrabiarazteko aukera.
2. Egiaztatu Interneteko konexioa
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Abiadura proba 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. Launch Ezarpenak sakatuz Windows + I teklak elkarrekin.
2. Egin klik Apps ezarpena.
3. Egin klik Lehenetsitako aplikazioak ezkerreko panelean.
4. Scroll down and click on the current Web arakatzailea.
5. Choose from the option as per your preference.
Era berean, irakurri: Nola konpondu Firefox orriak ez kargatzen
4. Ezabatu aldi baterako fitxategiak
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. Repair Corrupt Files
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. Eguneratu 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. Exekutatu Windows Update arazoak konpontzeko
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. Egin Sistema Berreskuratzea
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.
Era berean, irakurri: Konpondu zure konexioa ez da errore segurua Firefox-en
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. Sakatu Windows teklaidatzi, idatzi firefox eta klik Exekutatu administratzaileari aukera.
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. Sakatu Windows teklaidatzi, idatzi Firefox eta klikatu Ireki.
2. Egin klik gainean Ireki Aplikazioen menua button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Ezarpenak option on the list displayed.
3. In the General fitxa, egin klik gainean Egiaztatu eguneratzeak botoia Firefox eguneraketak atala.
4. Ikusiko duzu Firefox eguneratuta dago message on the Firefox Updates section.
Ohar: 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. Abiarazi ezazu Firefox app from the Windows bilaketa bar.
2. Ondoren, egin klik botoian Ireki Aplikazioen menua botoia eta egin klik Laguntza option on the list displayed.
3. Egin klik gainean Arazoak konpontzeko modua... in the Firefox laguntza leihoa.
4. Orain, egin klik gainean Berrabiarazterik botoian Berrabiarazi Firefox Arazoak konpontzeko moduan pop-up leihoa.
5. Egin klik gainean Freskatu Firefox botoian Open Firefox in Troubleshoot Mode berrespen leihoa.
6. Ondoren, egin klik botoian Freskatu Firefox botoian Refresh Firefox to its default settings leihoa.
7. Azkenean, egin klik Amaitu botoian Import Complete window to Refresh Firefox completely.
Era berean, irakurri: Konpondu zerbitzaria ez aurkitu errorea Firefox-en
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. ireki Mozilla Firefox app from the Windows bilaketa bar.
2. Egin klik gainean Ireki Aplikazioen menua botoia eta egin klik Laguntza option on the list displayed.
3. Orain, egin klik gainean Arazoak konpontzeko modua... in the Firefox laguntza leihoa.
4. Egin klik gainean Ireki botoian Berrabiarazi Firefox Arazoak konpontzeko moduan pop-up leihoa.
5. Ondoren, egin klik botoian Ireki Aplikazioen menua botoia eta egin klik Gehigarriak eta gaiak option on the list.
6. Egin klik gainean Extensions tab on the left pane of the next window and toggle off the add-ons on the window.
7. Ondoren, egin klik botoian hiru puntu horizontal button on the add-on and click on the Kendu button on the list.
8. Egin klik gainean Kendu 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. ireki Mozilla Firefox aplikazioa.
2. Egin klik gainean Ireki Aplikazioen menua botoia eta egin klik Eta bideoak bistaratzen den zerrendako aukera.
3. In the Eta bideoak menuan, egin klik Kudeatu laster-markak option at the bottom of the list.
4. In the Liburutegia pantaila, egin klik gainean Inportatu eta babeskopia button at the menu bar and click on the Esportatu laster-markak HTMLra... option in the drop-down menu displayed.
5. In the Esportatu laster-marken fitxategia window, browse and select a location, and click on the Save botoia laster-marken fitxategia gordetzeko.
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. Abiarazi ezazu Firefox arakatzailearen aplikazioa.
2. Mota about: profilak in the URL address bar at the top and press the Sartu tekla irekitzeko Profilei buruz leihoa.
3. Egin klik gainean Sortu profil berria leihoan dagoen botoia.
4. Ondoren, egin klik botoian hurrengo botoian Ongi etorri Sortu profilaren morroira.
5. Type a name for the Profile in the Idatzi profilaren izen berria eremuan eta egin klik gainean Amaitu leihoan dagoen botoia Profila sortzeko.
Ohar: Egin klik. Choose Folder… button to change the location for storing the User Profile name instead of the default location.
Era berean, irakurri: Konpondu Firefox dagoeneko martxan dago
7. metodoa: berriro instalatu 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. Sakatu Windows teklaidatzi, idatzi kontrol panel eta klikatu Ireki.
2. Egin klik aukeran Kategoria in the Ikusi by drop-down menu and click on the Desinstalatu programa Aukerarako Programak izenburu.
3. Aukeratu Mozilla Firefox (x64 en-US) in the list, click on the Desinstalatu barraren goialdean dagoen botoia eta egin klik botoian Bai botoia UAC leihoan.
4. Ondoren, egin klik botoian hurrengo botoia Mozilla Firefox desinstalatu wizard.
5. Ondoren, egin klik botoian Desinstalatu button in the next window.
6. Egin klik gainean Amaitu button on the last window to completely uninstall the Firefox app.
7. Sakatu Windows+ E gakoak together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox karpetan.
8. Egin klik eskuineko botoiarekin Mozilla Firefox karpeta eta egin klik gainean Ezabatu 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. Sakatu Windows teklaidatzi, idatzi Google Chrome eta klikatu Ireki.
Ohar: You can use any web browser to download the Firefox browser on your PC.
2. Ireki webgune ofiziala Mozilla Firefox arakatzailea on Google Chrome and click on the Deskargatu Firefox leihoan dagoen botoia.
3. Double-click on the downloaded executable file Firefox Installer.exe to run the installation file.
4. Wait for the installation process to complete.
5. Abiarazi ezazu Firefox Web Browser app on your PC.
Era berean, irakurri: Konpondu Soinurik ez Firefox-en Windows 10-n
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. ireki Firefox aplikazioa.
2. Egin klik gainean Ireki Aplikazioen menua botoia eta egin klik Ezarpenak option on the list displayed.
3. In the General fitxa, egin klik gainean Ezarpenak ... botoia Sarearen ezarpenak atala.
4. Aukeratu Manual proxy configuration aukera on the Konexio ezarpenak leihoa.
5. Mota SOCKS Host: 127.0.0.1 Port: 9050 in the HTTP proxy eremua, idatzi 8080 in the Port field, and click on the OK botoia.
6. Ondoren, idatzi About: config on the search bar of the Firefox browser and click on the Arriskua onartu eta Jarraitu botoia.
7. Finally, type network.proxy.socks_remote_dns bilaketa-barran eta egin klik botoian toggle button to set the type of the entry to be Egia.
8. Orain, idatzi https://check.torptoject.org/ in the search bar on the Firefox browser and press the Sartu key to check the issues with the Tor Browser.
Gomendatzen da:
Artikuluak konpontzeko metodoak eztabaidatzen ditu 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.