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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Metodo 1: Bazaj Problemo-Metodoj
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Rekomencu komputilon
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 fenestroj klavo, alklaku la potenco button at the bottom-left corner, and click on the Rekomenci option to restart your PC.
2. Kontrolu Interretan Konekton
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Rapida testo 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. Ĵeto Agordoj premante Vindozo + I klavoj kune.
2. Alklaku apps fikso.
3. Alklaku Defaŭltaj programoj sur la maldekstra panelo.
4. Scroll down and click on the current retumilo.
5. Choose from the option as per your preference.
Ankaŭ Legu: Kiel Ripari Firefox Ne Ŝarĝante Paĝojn
4. Forigi Portempajn Dosierojn
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. Ripari Koruptajn Dosieroj
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. Ĝisdatigu Vindozon
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. Kuru Windows Update Troubleshooter
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. Faru Sisteman Restarigon
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.
Ankaŭ Legu: Ripari Via Konekto ne estas Sekura Eraro ĉe Firefox
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. Premu la Vindozo-ŝlosilo, tipo firefox kaj alklaku la Ruli kiel administranto elekto.
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. Batu la Vindozo-ŝlosilo, tipo firefox kaj alklaku malfermita.
2. Alklaku la Malfermu Aplikan Menuon button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Agordoj option on the list displayed.
3. En la Ĝenerala langeto, alklaku la Kontrolu ĝisdatigojn butono en la Ĝisdatigoj de Fajrovulpo sekcio.
4. Vi vidos la Fajrovulpo estas ĝisdatigita message on the Firefox Updates section.
Noto: 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. Lanĉu la firefox app de la Windows-serĉo trinkejo.
2. Poste, alklaku la Malfermu Aplikan Menuon butonon kaj alklaku la helpi option on the list displayed.
3. Alklaku la Troubleshoot Mode… en la Helpo de Firefox fenestro.
4. Nun, alklaku la Rekomenci butonon sur la Rekomencu Firefox en Troubleshoot Mode ŝprucfenestro.
5. Alklaku la Refreŝigi Firefox butonon sur la Open Firefox in Troubleshoot Mode konfirma fenestro.
6. Tiam, alklaku la Refreŝigi Firefox butonon sur la Refresh Firefox to its default settings fenestro.
7. Fine alklaku la finpoluro butonon sur la Import Complete window to Refresh Firefox completely.
Ankaŭ Legu: Ripari Servilo Ne Trovita Eraro en Firefox
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. malfermu Mozilla Firefox app de la Windows-serĉo trinkejo.
2. Alklaku la Malfermu Aplikan Menuon butonon kaj alklaku la helpi option on the list displayed.
3. Nun, alklaku la Troubleshoot Mode… en la Helpo de Firefox fenestro.
4. Alklaku la malfermita butonon sur la Rekomencu Firefox en Troubleshoot Mode ŝprucfenestro.
5. Poste, alklaku la Malfermu Aplikan Menuon butonon kaj alklaku la Aldonaĵoj kaj temoj option on the list.
6. Alklaku la Etendaĵoj tab on the left pane of the next window and toggle for the add-ons on the window.
7. Tiam, alklaku la tri horizontalaj punktoj button on the add-on and click on the forigi button on the list.
8. Alklaku la forigi 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. malfermu Mozilla firefox app.
2. Alklaku la Malfermu Aplikan Menuon butonon kaj alklaku la legosignojn opcio en la montrata listo.
3. En la legosignojn menuo, alklaku la Administri legosignojn option at the bottom of the list.
4. En la Biblioteko ekrano, alklaku la Importi kaj Rezervi button at the menu bar and click on the Eksportu legosignojn al HTML... option in the drop-down menu displayed.
5. En la Eksportu Dosieron de Legosignoj window, browse and select a location, and click on the Savi butonon por konservi la legosigndosieron.
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. Lanĉu la firefox retumila aplikaĵo.
2. Tajpu pri: profiloj in the URL address bar at the top and press the Enigu klavo por malfermi la Pri Profiloj fenestro.
3. Alklaku la Kreu Novan Profilon butono sur la fenestro.
4. Poste, alklaku la sekva butonon sur la Bonvenon al la Krei Profila Sorĉisto.
5. Type a name for the Profile in the Enigu novan profilan nomon kampo kaj alklaku la finpoluro butonon en la fenestro por krei la Profilon.
Noto: Alklaku la Choose Folder… button to change the location for storing the User Profile name instead of the default location.
Ankaŭ Legu: Ripari Firefox Jam Funkcias
Metodo 7: Reinstalu 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. Premu la Vindozo-ŝlosilo, tipo kontrolo panelo kaj alklaku malfermita.
2. Click on the option kategorio en la Rigardu per drop-down menu and click on the Malinstali programon opcio en la programoj titolo.
3. Elektu la Mozilla Firefox (x64 en-Usono) in the list, click on the Malinstali butonon ĉe la supro de la stango kaj alklaku la Jes butono sur la fenestro de UAC.
4. Tiam, alklaku la sekva butono en la Malinstali Mozilla Firefox sorĉisto
5. Poste, alklaku la Malinstali button in the next window.
6. Alklaku la finpoluro button on the last window to completely uninstall the Firefox app.
7. Premu la Windows+ E klavoj together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox dosierujo.
8. Dekstre alklaku la Mozilla Firefox dosierujo kaj alklaku la forviŝi 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. Batu la Vindozo-ŝlosilo, tipo Google Chrome kaj alklaku malfermita.
Noto: You can use any web browser to download the Firefox browser on your PC.
2. Malfermu la oficialan retejon de la Retumilo Mozilla Firefox on Google Chrome and click on the Elŝutu Firefox butono sur la fenestro.
3. Double-click on the downloaded executable file Firefox Installer.exe to run the installation file.
4. Atendu ke la instalado procezo finiĝos.
5. Lanĉu la firefox Web Browser app on your PC.
Ankaŭ Legu: Ripari Neniun Sonon en Fajrovulpo ĉe Vindozo 10
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. malfermu firefox app.
2. Alklaku la Malfermu Aplikan Menuon butonon kaj alklaku la Agordoj option on the list displayed.
3. En la Ĝenerala langeto, alklaku la Agordoj ... butono en la Reto-agordoj sekcio.
4. Elektu la Manual proxy configuration opcio sur la Konektaj Agordoj fenestro.
5. Tajpu SOCKS Host: 127.0.0.1 Port: 9050 en la HTTP-prokurilo kampo, tipo 8080 en la haveno field, and click on the OK butonon.
6. Poste, tajpu Pri: agordi on the search bar of the Firefox browser and click on the Akceptu la Riskon kaj Daŭrigu butonon.
7. Finally, type network.proxy.socks_remote_dns in the search bar and click on the ebligi button to set the type of the entry to be veraj.
8. Nun, tajpu https://check.torptoject.org/ in the search bar on the Firefox browser and press the Enigu key to check the issues with the Tor Browser.
rekomendita:
The article discusses the methods to fix 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.