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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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: Osnovne metode za rješavanje problema
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Ponovo pokrenite 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 taster, kliknite na moć button at the bottom-left corner, and click on the Ponovo pokreni opcija za ponovno pokretanje računara.
2. Provjerite Internet vezu
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Test brzine 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. Pokretanje Postavke pritiskom Windows + I tasteri zajedno.
2. Kliknite na Apps podešavanje.
3. Kliknite na Podrazumevane aplikacije na lijevom oknu.
4. Scroll down and click on the current web preglednik.
5. Choose from the option as per your preference.
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4. Izbrišite privremene datoteke
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. Ažurirajte 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. Pokrenite alatku za uklanjanje problema sa Windows Update
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. Izvršite vraćanje sistema
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. Pritisnite taster Windows ključ, tip firefox i kliknite na Pokreni kao administrator opcija.
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. Pritisnite Windows ključ, tip Firefox i kliknite na otvoreno.
2. Kliknite na Otvorite meni aplikacija button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Postavke opciju na prikazanoj listi.
3. U Opšti karticu, kliknite na dugme Proverite ažuriranja dugme u Firefox Updates sekcija.
4. Videćete Firefox is up to date message on the Firefox Updates section.
Bilješka: 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. Pokrenite Firefox aplikacija iz Windows pretragu bar
2. Zatim kliknite na Otvorite meni aplikacija i kliknite na pomoći opciju na prikazanoj listi.
3. Kliknite na Troubleshoot Mode… u Firefox help prozor.
4. Sada kliknite na Ponovo pokreni dugme na Ponovo pokrenite Firefox u načinu za rješavanje problema pop-up prozor.
5. Kliknite na Osveži Firefox dugme na Open Firefox in Troubleshoot Mode confirmation window.
6. Zatim kliknite na Osveži Firefox dugme na Refresh Firefox to its default settings prozor.
7. Na kraju, kliknite na završiti dugme na 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. Otvorite Mozilla Firefox aplikacija iz Windows pretragu bar
2. Kliknite na Otvorite meni aplikacija i kliknite na pomoći opciju na prikazanoj listi.
3. Sada kliknite na Troubleshoot Mode… u Firefox help prozor.
4. Kliknite na otvoreno dugme na Ponovo pokrenite Firefox u načinu za rješavanje problema pop-up prozor.
5. Zatim kliknite na Otvorite meni aplikacija i kliknite na Dodaci i teme opciju na listi.
6. Kliknite na Ekstenzije tab on the left pane of the next window and toggle isključen the add-ons on the window.
7. Zatim kliknite na tri vodoravne tačke button on the add-on and click on the ukloniti button on the list.
8. Kliknite na ukloniti 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. Otvorite Mozilla Firefox aplikacija.
2. Kliknite na Otvorite meni aplikacija i kliknite na Bookmarks option in the list displayed.
3. U Bookmarks meni, kliknite na Upravljajte oznakama option at the bottom of the list.
4. U biblioteka ekran, kliknite na Uvoz i sigurnosna kopija button at the menu bar and click on the Export Bookmarks to HTML… option in the drop-down menu displayed.
5. U Export Bookmarks File window, browse and select a location, and click on the Save 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. Pokrenite Firefox app browser.
2. tip o: profili in the URL address bar at the top and press the ući tipka za otvaranje About Profiles prozor.
3. Kliknite na Kreirajte novi profil dugme na prozoru.
4. Zatim kliknite na sljedeći dugme na Welcome to the Create Profile Wizard.
5. Type a name for the Profile in the Unesite novo ime profila polje i kliknite na završiti button in the window to create the Profile.
Bilješka: Kliknite na 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. Pritisnite taster Windows ključ, tip kontrolna tabla i kliknite na otvoreno.
2. Kliknite na opciju kategorija u Pregled po drop-down menu and click on the Deinstalirajte program opcija u programi naslov.
3. Izaberite Mozilla Firefox (x64 en-US) in the list, click on the Deinstalirati button at the top of the bar and click on the Da button on the UAC window.
4. Zatim kliknite na sljedeći dugme u Mozilla Firefox Uninstall čarobnjak.
5. Zatim kliknite na Deinstalirati button in the next window.
6. Kliknite na završiti button on the last window to completely uninstall the Firefox app.
7. Pritisnite taster Windows+ E ključeve together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox folder.
8. Desnom tipkom miša kliknite Mozilla Firefox folder i kliknite na izbrisati 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. Pritisnite Windows ključ, tip google chrome i kliknite na otvoreno.
Bilješka: You can use any web browser to download the Firefox browser on your PC.
2. Otvorite službenu web stranicu Mozilla Firefox preglednik on Google Chrome and click on the Preuzmite Firefox dugme na prozoru.
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. Pokrenite 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. Otvorite Firefox aplikacija.
2. Kliknite na Otvorite meni aplikacija i kliknite na Postavke opciju na prikazanoj listi.
3. U Opšti karticu, kliknite na dugme Postavke… dugme u Network Settings sekcija.
4. Izaberite Manual proxy configuration opcija na Postavke veze prozor.
5. tip SOCKS Host: 127.0.0.1 Port: 9050 u HTTP proxy polje, tip 8080 u luka field, and click on the OK dugme.
6. Zatim otkucajte About: config on the search bar of the Firefox browser and click on the Prihvatite rizik i nastavite dugme.
7. Finally, type network.proxy.socks_remote_dns u traci za pretragu i kliknite na prebaciti button to set the type of the entry to be istinski.
8. Sada, otkucajte https://check.torptoject.org/ in the search bar on the Firefox browser and press the ući key to check the issues with the Tor Browser.
Preporučena:
Članak govori o metodama popravljanja 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.