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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Njira 1: Njira Zothetsera Mavuto
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Yambitsaninso 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 key, dinani pa mphamvu button at the bottom-left corner, and click on the Yambitsaninso njira yoyambiranso PC yanu.
2. Onani Kulumikizika kwa intaneti
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Kuthamanga msanga 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. Yambani Zikhazikiko mwa kukakamiza Makiyi a Windows + I limodzi.
2. Dinani mapulogalamu kukhazikitsidwa.
3. Dinani Zosasintha mapulogalamu kumanzere kumanzere.
4. Scroll down and click on the current Wosakatula Webusaiti.
5. Choose from the option as per your preference.
Komanso Werengani: Momwe Mungakonzere Firefox Osatsegula Masamba
4. Chotsani Mafayilo Osakhalitsa
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. Konzani Mafayilo Achinyengo
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. Sinthani 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. Thamangani 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. Chitani Kubwezeretsa Kwadongosolo
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.
Komanso Werengani: Konzani Kulumikizana Kwanu sikuli Kulakwitsa Kotetezedwa pa 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. Kanikizani Chipangizo cha Windows, yesani firefox ndipo dinani pa Kuthamanga monga woyang'anira mwina.
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. Menyani Chipangizo cha Windows, yesani Firefox ndipo dinani Open.
2. Dinani pa Tsegulani menyu Yofunsira button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Zikhazikiko njira pa mndandanda kuwonetsedwa.
3. Mu General tabu, dinani pa Fufuzani zosintha batani mu Zosintha za Firefox gawo.
4. Mudzaona Firefox is up to date message on the Firefox Updates section.
Zindikirani: 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. Tsegulani Firefox app kuchokera ku Kusaka kwa Windows bala.
2. Kenako, alemba pa Tsegulani menyu Yofunsira batani ndikudina pa Thandizeni njira pa mndandanda kuwonetsedwa.
3. Dinani pa Troubleshoot Mode… mu Thandizo la Firefox zenera.
4. Tsopano, alemba pa Yambitsaninso batani pa Yambitsaninso Firefox munjira ya Troubleshoot pop-up zenera.
5. Dinani pa Onjezani Firefox batani pa Open Firefox in Troubleshoot Mode zenera lotsimikizira.
6. Kenako, alemba pa Onjezani Firefox batani pa Refresh Firefox to its default settings zenera.
7. Pomaliza, dinani pa chitsiriziro batani pa Import Complete window to Refresh Firefox completely.
Komanso Werengani: Konzani Zolakwika Zosapezeka pa Seva mu 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. kutsegula Firefox ya Mozilla app kuchokera ku Kusaka kwa Windows bala.
2. Dinani pa Tsegulani menyu Yofunsira batani ndikudina pa Thandizeni njira pa mndandanda kuwonetsedwa.
3. Tsopano, alemba pa Troubleshoot Mode… mu Thandizo la Firefox zenera.
4. Dinani pa Open batani pa Yambitsaninso Firefox munjira ya Troubleshoot pop-up zenera.
5. Kenako, alemba pa Tsegulani menyu Yofunsira batani ndikudina pa Zowonjezera ndi mitu njira pa mndandanda.
6. Dinani pa yophunzitsa tab on the left pane of the next window and toggle pa the add-ons on the window.
7. Kenako, alemba pa madontho atatu opingasa button on the add-on and click on the Chotsani button on the list.
8. Dinani pa Chotsani 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. kutsegula Mozilla Firefox app.
2. Dinani pa Tsegulani menyu Yofunsira batani ndikudina pa Zosungira njira mu mndandanda wasonyezedwa.
3. Mu Zosungira menyu, dinani batani Sinthani ma bookmark option at the bottom of the list.
4. Mu Library skrini, dinani pa Tengani ndi Sungani button at the menu bar and click on the Tumizani Mabukumaki ku HTML… option in the drop-down menu displayed.
5. Mu Tumizani Fayilo Yamabukumaki window, browse and select a location, and click on the Save batani kusunga fayilo ya bookmark.
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. Tsegulani Firefox msakatuli app.
2. Lembani za: mbiri in the URL address bar at the top and press the Lowani kiyi yotsegula Za Mbiri zenera.
3. Dinani pa Pangani Mbiri Yatsopano batani pawindo.
4. Kenako, alemba pa Ena batani pa Takulandirani ku Pangani Mbiri Wizard.
5. Type a name for the Profile in the Lowetsani dzina latsopano field ndikudina pa chitsiriziro batani pawindo kuti mupange Mbiri.
Zindikirani: Dinani pa Choose Folder… button to change the location for storing the User Profile name instead of the default location.
Komanso Werengani: Konzani Firefox Yayamba kale
Njira 7: Ikaninso 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. Kanikizani Chipangizo cha Windows, yesani gulu lolamulira ndipo dinani Open.
2. Dinani pa njira Category mu Onani ndi drop-down menu and click on the Sulani pulogalamu Njira mu mapulogalamu kutsogolera.
3. Sankhani Mozilla Firefox (x64 en-US) in the list, click on the Yambani batani pamwamba pa bar ndikudina batani inde batani pawindo la UAC.
4. Kenako, alemba pa Ena batani mu Chotsani Mozilla Firefox wizara.
5. Kenako, alemba pa Yambani button in the next window.
6. Dinani pa chitsiriziro button on the last window to completely uninstall the Firefox app.
7. Kanikizani Windows+ E makiyi together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox mufoda.
8. Dinani kumanja pa Firefox ya Mozilla folder and click on the Chotsani 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. Menyani Chipangizo cha Windows, yesani google chrome ndipo dinani Open.
Zindikirani: You can use any web browser to download the Firefox browser on your PC.
2. Tsegulani tsamba lovomerezeka la Msakatuli wa Mozilla Firefox on Google Chrome and click on the Koperani Firefox batani pawindo.
3. Double-click on the downloaded executable file Firefox Installer.exe to run the installation file.
4. Dikirani kuti ntchito yoika ikwaniritsidwe.
5. Tsegulani Firefox Web Browser app on your PC.
Komanso Werengani: Konzani Palibe Phokoso mu Firefox Windows 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. kutsegula Firefox app.
2. Dinani pa Tsegulani menyu Yofunsira batani ndikudina pa Zikhazikiko njira pa mndandanda kuwonetsedwa.
3. Mu General tabu, dinani pa Zokonda… batani mu Mipangidwe ya Network gawo.
4. Sankhani Manual proxy configuration njira pa Makonda Olumikizirana zenera.
5. Lembani SOCKS Host: 127.0.0.1 Port: 9050 mu Wothandizira wa HTTP munda, mtundu 8080 mu Port field, and click on the OK batani.
6. Kenako lembani Za: kontha on the search bar of the Firefox browser and click on the Landirani Chiwopsezo ndikupitiliza batani.
7. Finally, type network.proxy.socks_remote_dns in the search bar and click on the sintha button to set the type of the entry to be koona.
8. Tsopano, lembani https://check.torptoject.org/ in the search bar on the Firefox browser and press the Lowani key to check the issues with the Tor Browser.
anati:
Nkhaniyi ikufotokoza njira zothetsera 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.