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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Metoda 1: Metodat themelore të zgjidhjes së problemeve
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Rinisni kompjuterin
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 Dritaret key, click on the Fuqija button at the bottom-left corner, and click on the Rifillo, fillo përsëri option to restart your PC.
2. Kontrolloni lidhjen me internetin
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Testi i shpejtësisë 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. Nisja Cilësimet duke shtypur Tastet Windows + I së bashku.
2. Kliko në Apps vendosjen.
3. Kliko në Aplikacionet e paracaktuara në panelin e majtë.
4. Scroll down and click on the current Shfletuesi web.
5. Choose from the option as per your preference.
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4. Fshi skedarët e përkohshëm
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. Përditësoni 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. Run Run Windows 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. Kryeni rivendosjen e sistemit
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. Shtypni Keyelësi Windows, shkruaj firefox dhe klikoni në Drejtoni si administrator opsion.
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. Goditni Keyelësi Windows, shkruaj Firefox dhe klikoni mbi hapur.
2. Kliko në Open Application Menu button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Cilësimet option on the list displayed.
3. Në i përgjithshëm tab, klikoni mbi Kontrolloni për përditësime butonin në Përditësimet e Firefox -it seksion.
4. Ju do të shihni Firefox is up to date message on the Firefox Updates section.
Shënim: 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. Nisë Firefox app nga Kërkimi i Windows bar.
2. Më pas, klikoni në Open Application Menu butonin dhe klikoni në Ndihmë option on the list displayed.
3. Kliko në Troubleshoot Mode… në Firefox help dritare.
4. Tani, klikoni mbi Rifillo, fillo përsëri butonin në Rinisni Firefox-in në modalitetin e zgjidhjes së problemeve dritare pop-up.
5. Kliko në Rifresko Firefox-in butonin në Open Firefox in Troubleshoot Mode dritare konfirmimi.
6. Pastaj, klikoni mbi Rifresko Firefox-in butonin në Refresh Firefox to its default settings dritare.
7. Në fund, klikoni në Fund butonin në 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. hapur Mozilla Firefox app nga Kërkimi i Windows bar.
2. Kliko në Open Application Menu butonin dhe klikoni në Ndihmë option on the list displayed.
3. Tani, klikoni mbi Troubleshoot Mode… në Firefox help dritare.
4. Kliko në hapur butonin në Rinisni Firefox-in në modalitetin e zgjidhjes së problemeve dritare pop-up.
5. Më pas, klikoni në Open Application Menu butonin dhe klikoni në Shtesa dhe tema option on the list.
6. Kliko në Extensions tab on the left pane of the next window and toggle nga the add-ons on the window.
7. Pastaj, klikoni mbi tre pika horizontale button on the add-on and click on the Heq button on the list.
8. Kliko në Heq 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. hapur Mozilla Firefox app.
2. Kliko në Open Application Menu butonin dhe klikoni në Bookmarks option in the list displayed.
3. Në Bookmarks menu, klikoni në Menaxho faqeshënuesit option at the bottom of the list.
4. Në Bibliotekë ekran, klikoni mbi Importi dhe rezervimi button at the menu bar and click on the Export Bookmarks to HTML… option in the drop-down menu displayed.
5. Në Export Bookmarks File window, browse and select a location, and click on the Ruaje 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. Nisë Firefox aplikacioni i shfletuesit.
2. lloj rreth: profileve in the URL address bar at the top and press the Shkruani çelësi për të hapur About Profiles dritare.
3. Kliko në Krijoni një profil të ri button on the window.
4. Më pas, klikoni në Tjetër butonin në Welcome to the Create Profile Wizard.
5. Type a name for the Profile in the Fut emrin e profilit të ri fushë dhe klikoni në Fund button in the window to create the Profile.
Shënim: Kliko në 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. Shtypni Keyelësi Windows, shkruaj Paneli i kontrollit dhe klikoni mbi hapur.
2. Click on the option Kategoria në Shiko nga drop-down menu and click on the Ininstaloni një program opsion në Programe shkon.
3. Zgjidhni Mozilla Firefox (x64 en-US) in the list, click on the Uninstall button at the top of the bar and click on the Po butonin në dritaren UAC.
4. Pastaj, klikoni mbi Tjetër butonin në Mozilla Firefox Uninstall magjistar.
5. Më pas, klikoni në Uninstall button in the next window.
6. Kliko në Fund button on the last window to completely uninstall the Firefox app.
7. Shtypni Windows+ E çelësat together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox dosje.
8. Kliko me të djathtën në Mozilla Firefox dosje dhe klikoni mbi Fshij 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. Goditni Keyelësi Windows, shkruaj google chrome dhe klikoni mbi hapur.
Shënim: You can use any web browser to download the Firefox browser on your PC.
2. Hapni faqen zyrtare të internetit të Shfletuesi Mozilla Firefox on Google Chrome and click on the Shkarkoni Firefox-in button on the window.
3. Double-click on the downloaded executable file Installer Firefox.exe to run the installation file.
4. Wait for the installation process to complete.
5. Nisë 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. hapur Firefox app.
2. Kliko në Open Application Menu butonin dhe klikoni në Cilësimet option on the list displayed.
3. Në i përgjithshëm tab, klikoni mbi Cilësimet butonin në Rrjeti Cilësimet seksion.
4. Zgjidhni Manual proxy configuration opsion në Cilësimet e Lidhjes dritare.
5. lloj SOCKS Host: 127.0.0.1 Port: 9050 në Proxy HTTP fushë, lloj 8080 në Port field, and click on the OK button.
6. Më pas shkruani About: config on the search bar of the Firefox browser and click on the Pranoni rrezikun dhe vazhdoni button.
7. Finally, type network.proxy.socks_remote_dns në shiritin e kërkimit dhe klikoni mbi kunj button to set the type of the entry to be i vërtetë.
8. Tani shkruani https://check.torptoject.org/ in the search bar on the Firefox browser and press the Shkruani key to check the issues with the Tor Browser.
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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.