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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Kaʻina 1: Nā ʻano hoʻoponopono kumu
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Hoʻomaka hou i ka 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 kī, kaomi ma ka mana button at the bottom-left corner, and click on the E hoʻomaka hou koho e hoʻomaka hou i kāu PC.
2. E nānā i ka pilina pūnaewele
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Hōʻike wikiwiki 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. Hoʻollo Kāu Mau koho Paʻamau ma ke kāomiʻana Nā kī Windows + I pu.
2. Kaomi ma Apps wahi.
3. Kaomi ma Nā leka uila ma ka ʻaoʻao hema.
4. Scroll down and click on the current Pūnaewele pūnaewele.
5. Choose from the option as per your preference.
E heluhelu pū nō hoʻi: Pehea e hoʻoponopono ai iā Firefox ʻaʻole hoʻouka i nā ʻaoʻao
4. Holoi i nā faila kūlohelohe
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. Hoʻoponopono i nā faila hewa
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. Hōʻano hou i ka 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. E hoʻokau i ka Pūnaewele Hoʻohui 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. Hana i ka System Restore
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.
E heluhelu pū nō hoʻi: E hoʻoponopono i kāu pilina ʻaʻole he Secure Error ma 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. Pomi i ka Kāleka Windows,ʻano Firefox a kaomi ma ka E holo ma keʻano he mea hoʻoponopono koho.
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. Pa i ka Kāleka Windows,ʻano Firefox ae kaomi ma Open.
2. Kaomi ma ka E wehe i ka papa kuhikuhi noi button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Kāu Mau koho Paʻamau koho ma ka papa inoa i hōʻike ʻia.
3. I ka Nui kaomi, e kaomi E hoʻopaʻa i nā mea hou pākuʻi ma ka Mea Hou a Firefox pauku.
4. E ike oe i ka Firefox is up to date message on the Firefox Updates section.
'Ōlelo Aʻo: 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. Hoʻopau i ka Firefox polokalamu mai ka Huli Windows māka.
2. A laila, kaomi i ka E wehe i ka papa kuhikuhi noi pihi a kaomi ma ka kokua koho ma ka papa inoa i hōʻike ʻia.
3. Kaomi ma ka ʻAno hoʻoponopono pilikia… i ka Kōkua ʻo Firefox puka makani.
4. Ano, kaomi ma ka E hoʻomaka hou pihi ma ka E hoʻomaka hou iā Firefox ma ke ʻano hoʻoponopono pilikia pukaaniani pop-up.
5. Kaomi ma ka Hōʻano hou i ka Firefox pihi ma ka Open Firefox in Troubleshoot Mode puka makani hōʻoia.
6. A laila, kaomi ma luna o ka Hōʻano hou i ka Firefox pihi ma ka Refresh Firefox to its default settings puka makani.
7. Eia hoʻi, kaomi ma ka a pau pihi ma ka Import Complete window to Refresh Firefox completely.
E heluhelu pū nō hoʻi: Hoʻoponopono ʻAʻole i loaʻa ka hewa i ka Server ma 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. E wehe i Mozilla Firefox polokalamu mai ka Huli Windows māka.
2. Kaomi ma ka E wehe i ka papa kuhikuhi noi pihi a kaomi ma ka kokua koho ma ka papa inoa i hōʻike ʻia.
3. Ano, kaomi ma ka ʻAno hoʻoponopono pilikia… i ka Kōkua ʻo Firefox puka makani.
4. Kaomi ma ka Open pihi ma ka E hoʻomaka hou iā Firefox ma ke ʻano hoʻoponopono pilikia pukaaniani pop-up.
5. A laila, kaomi i ka E wehe i ka papa kuhikuhi noi pihi a kaomi ma ka Nā mea hoʻohui a me nā kumuhana koho ma ka papa inoa.
6. Kaomi ma ka hoʻopaneʻei ka palena manawa tab on the left pane of the next window and toggle aku the add-ons on the window.
7. A laila, kaomi ma luna o ka ʻekolu kiko kiko button on the add-on and click on the wehe i button on the list.
8. Kaomi ma ka wehe i 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. E wehe i Mozilla Firefox mail app.
2. Kaomi ma ka E wehe i ka papa kuhikuhi noi pihi a kaomi ma ka i ka lepe puke koho i ka papa inoa i hōʻike ʻia.
3. I ka i ka lepe puke menu, kaomi ma ka Mālama i nā kaha puke option at the bottom of the list.
4. I ka waihona Puke nānā, e kaomi i ka Hoʻokomo a hoʻihoʻi button at the menu bar and click on the Hoʻokuʻu aku i nā kaha puke i HTML… option in the drop-down menu displayed.
5. I ka E hoʻokuʻu aku i nā waihona puke window, browse and select a location, and click on the Save pihi e mālama i ka waihona bookmarks.
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. Hoʻopau i ka Firefox polokalamu kele pūnaewele.
2. ʻAno e pili ana i: profiles in the URL address bar at the top and press the komo ki e wehe i ka E pili ana i nā moʻolelo puka makani.
3. Kaomi ma ka Hana i kahi Profile Hou pihi ma ka pukaaniani.
4. A laila, kaomi i ka Aʻe pihi ma ka Welina mai i ka Create Profile Wizard.
5. Type a name for the Profile in the E hoʻokomo i ka inoa pili hou kahua a kaomi ma ka a pau pihi ma ka puka aniani e hana i ka Profile.
'Ōlelo Aʻo: E kaomi ma luna o ka Choose Folder… button to change the location for storing the User Profile name instead of the default location.
E heluhelu pū nō hoʻi: Hoʻoponopono Ke holo nei ʻo Firefox
Kaʻina 7: E hoʻouka hou iā 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. Pomi i ka Kāleka Windows,ʻano papa mana ae kaomi ma Open.
2. Click on the option Māhele i ka Nānā ma drop-down menu and click on the Hoʻopau i kahi polokalamu koho ma ka papahana pookela.
3. E koho i ka Mozilla Firefox (x64 en-US) in the list, click on the Uninstall pihi ma ka piko o ka pahu a kaomi ma ka ʻAe pihi ma ka pukaaniani UAC.
4. A laila, kaomi ma luna o ka Aʻe pākuʻi ma ka Wehe ʻia ʻo Mozilla Firefox wizard.
5. A laila, kaomi i ka Uninstall button in the next window.
6. Kaomi ma ka a pau button on the last window to completely uninstall the Firefox app.
7. Pomi i ka Windows+ E ki together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox waihona.
8. Kaomi ʻākau ma ka Mozilla Firefox waihona a kaomi ma ka e kāpae i 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. Pa i ka Kāleka Windows,ʻano google chrome ae kaomi ma Open.
'Ōlelo Aʻo: You can use any web browser to download the Firefox browser on your PC.
2. E wehe i ka punaewele kūhelu o ka Polokalamu kele pūnaewele Mozilla Firefox on Google Chrome and click on the Huli i ka polokalamu uila pihi ma ka pukaaniani.
3. Double-click on the downloaded executable file Firefox Installer.exe to run the installation file.
4. E kali no ka hoʻopau ʻana o ke kaʻina hana.
5. Hoʻopau i ka Firefox Web Browser app on your PC.
E heluhelu pū nō hoʻi: Hoʻoponopono ʻaʻohe kani ma Firefox ma 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. E wehe i Firefox mail app.
2. Kaomi ma ka E wehe i ka papa kuhikuhi noi pihi a kaomi ma ka Kāu Mau koho Paʻamau koho ma ka papa inoa i hōʻike ʻia.
3. I ka Nui kaomi, e kaomi Nā hoʻonohonoho… pākuʻi ma ka Nā Pūnaewele Pūnaewele pauku.
4. E koho i ka Manual proxy configuration koho i ka Nā hoʻonohonoho hoʻonohonoho puka makani.
5. ʻAno SOCKS Host: 127.0.0.1 Port: 9050 i ka Http Proxy kahua, ʻano 8080 i ka ʻO Port field, and click on the OK pihi.
6. A laila, e kikokiko E pili ana: hoʻonohonoho on the search bar of the Firefox browser and click on the E ʻae i ka makaʻu a hoʻomau pihi.
7. Finally, type network.proxy.socks_remote_dns ma ka pahu huli a kaomi ma ka ke lele button to set the type of the entry to be oiaio.
8. I kēia manawa, e ʻano https://check.torptoject.org/ in the search bar on the Firefox browser and press the komo key to check the issues with the Tor Browser.
haawiia:
Kūkākūkā ka ʻatikala i nā ala e hoʻoponopono ai 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.