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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Tikanga 1: Tikanga Raparongoā Taketake
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Tīmataria anō te 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, pāwhiri i te Power button at the bottom-left corner, and click on the Tīmata kōwhiringa ki te tīmata anō i tō PC.
2. Tirohia te Hononga Ipurangi
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Whakamatau Tere 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. Whakarewa tautuhinga mā te pēhi Matapihi + I nga taviri tahi.
2. Pāwhiritia te Apps tautuhinga.
3. Pāwhiritia te Ngā taupānga taunoa i te pihanga maui.
4. Scroll down and click on the current Pūtirotiro Tukutuku.
5. Choose from the option as per your preference.
Ano hoki: Me pehea te Whakatika i a Firefox kaore e utaina nga wharangi
4. Mukua nga Kōnae Rangatiratanga
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. Whakatikahia nga konae kino
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. Whakahou Matapihi
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. Whakahaere Raru Whakahoutanga Matapihi
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. Mahi Whakaora Pūnaha
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.
Ano hoki: Whakatikahia to Hononga ehara i te Hapa Haumaru i runga i a 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. Whakapirihia te Kī Windows, momo Firefox ka pāwhiri i te Whakahaere hei kaiwhakahaere kōwhiringa.
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. Patua te Kī Windows, momo Firefox ka pāwhiri ai tuwhera.
2. Patohia te Whakatuwherahia te Tahua Tono button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the tautuhinga kōwhiringa i runga i te rārangi whakaaturia.
3. I roto i te General ripa, pāwhiritia i runga i te Tirohia mo nga whakahou pātene i roto i te Whakahoutanga Firefox wāhanga.
4. Ka kite koe i te Firefox is up to date message on the Firefox Updates section.
Tuhipoka: 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. Te Tuku i te Firefox Tuhinga mai i te Rapu Windows pae.
2. I muri mai, pawhiria te Whakatuwherahia te Tahua Tono paatene ka paato i te Āwhina kōwhiringa i runga i te rārangi whakaaturia.
3. Patohia te Troubleshoot Mode… i roto i te Awhina Firefox matapihi.
4. Na, pawhiria te Tīmata pātene kei runga i te Tīmata anō a Firefox i te Aratau Raparongoā matapihi pakū-ake.
5. Patohia te Tāmata Firefox pātene kei runga i te Open Firefox in Troubleshoot Mode matapihi whakau.
6. Na, pawhiria te Tāmata Firefox pātene kei runga i te Refresh Firefox to its default settings matapihi.
7. Hei whakamutunga, paatohia te Mutu pātene kei runga i te Import Complete window to Refresh Firefox completely.
Ano hoki: Whakatikahia te Tūmau Kaore i Kitea Hapa i 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. Whakatūwhera te Mozilla Firefox Tuhinga mai i te Rapu Windows pae.
2. Patohia te Whakatuwherahia te Tahua Tono paatene ka paato i te Āwhina kōwhiringa i runga i te rārangi whakaaturia.
3. Na, pawhiria te Troubleshoot Mode… i roto i te Awhina Firefox matapihi.
4. Patohia te tuwhera pātene kei runga i te Tīmata anō a Firefox i te Aratau Raparongoā matapihi pakū-ake.
5. I muri mai, pawhiria te Whakatuwherahia te Tahua Tono paatene ka paato i te Tāpiri-ake me nga kaupapa kōwhiringa i runga i te rārangi.
6. Patohia te Toronga tab on the left pane of the next window and toggle atu the add-ons on the window.
7. Na, pawhiria te e toru nga kiko whakapae button on the add-on and click on the Tangohia button on the list.
8. Patohia te Tangohia 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. Whakatūwhera te Mozilla Firefox taupānga.
2. Patohia te Whakatuwherahia te Tahua Tono paatene ka paato i te Tohuwāhi kōwhiringa i roto i te rārangi whakaaturia.
3. I roto i te Tohuwāhi tahua, pawhiria te Whakahaere tohuwāhi option at the bottom of the list.
4. I roto i te Puna matapihi, pāwhiri i te Kawemai me te Pūrua button at the menu bar and click on the Kaweake Tohuwāhi ki HTML… option in the drop-down menu displayed.
5. I roto i te Kaweake Kōnae Tohuwāhi window, browse and select a location, and click on the Tiaki pātene hei tiaki i te kōnae tohuwāhi.
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. Te Tuku i te Firefox taupānga pūtirotiro.
2. Momo e pā ana ki: pūkete in the URL address bar at the top and press the E tomo kī mo te whakatuwhera i te Mō Kōtaha matapihi.
3. Patohia te Hangaia he Whakaahua Hou pātene i runga i te matapihi.
4. I muri mai, pawhiria te Panuku pātene kei runga i te Nau mai ki te Ruānuku Waihanga Kōtaha.
5. Type a name for the Profile in the Whakauruhia te ingoa kōtaha hou mara ka paato i te Mutu pātene i te matapihi hei hanga i te Kōtaha.
Tuhipoka: Pāwhiritia i runga i te Choose Folder… button to change the location for storing the User Profile name instead of the default location.
Ano hoki: Whakatika Kua rere ke a Firefox
Tikanga 7: Tāuta anō a 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. Whakapirihia te Kī Windows, momo paewhiri mana ka pāwhiri ai tuwhera.
2. Pāwhiritia te kōwhiringa kāwai i roto i te Tirohia e drop-down menu and click on the Tango i te papatono kōwhiringa i te Papatono pane.
3. Tīpakohia te Mozilla Firefox (x64 en-US) in the list, click on the Wetetāuta te paatene kei te tihi o te pae ka paato i te Āe button on the UAC window.
4. Na, pawhiria te Panuku pātene i roto i te Mozilla Firefox Wetetāuta ruānuku.
5. I muri mai, pawhiria te Wetetāuta button in the next window.
6. Patohia te Mutu button on the last window to completely uninstall the Firefox app.
7. Whakapirihia te Windows+ E mau taviri together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox kōpaki.
8. Paato matau-i runga i te Mozilla Firefox kōpaki ka paato i te Mukua 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. Patua te Kī Windows, momo google chrome ka pāwhiri ai tuwhera.
Tuhipoka: You can use any web browser to download the Firefox browser on your PC.
2. Whakatuwheratia te paetukutuku mana o te Pūtirotiro Mozilla Firefox on Google Chrome and click on the Tikiake Firefox pātene i runga i te matapihi.
3. Double-click on the downloaded executable file Firefox Installer.exe to run the installation file.
4. Tatari kia oti te tukanga whakauru.
5. Te Tuku i te Firefox Web Browser app on your PC.
Ano hoki: Whakatikahia Kaore he Oro i Firefox i runga 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. Whakatūwhera te Firefox taupānga.
2. Patohia te Whakatuwherahia te Tahua Tono paatene ka paato i te tautuhinga kōwhiringa i runga i te rārangi whakaaturia.
3. I roto i te General ripa, pāwhiritia i runga i te Tautuhinga… pātene i roto i te Tautuhinga Whatunga wāhanga.
4. Tīpakohia te Manual proxy configuration kōwhiringa i runga i te Tautuhinga Hononga matapihi.
5. Momo SOCKS Host: 127.0.0.1 Port: 9050 i roto i te HTTP Takawaenga mara, momo 8080 i roto i te Port field, and click on the OK pātene.
6. Na, pato Mō: config on the search bar of the Firefox browser and click on the Whakaaehia te Raru ka haere tonu pātene.
7. Finally, type network.proxy.socks_remote_dns in the search bar and click on the takahuri button to set the type of the entry to be pono.
8. Na, pato https://check.torptoject.org/ in the search bar on the Firefox browser and press the E tomo key to check the issues with the Tor Browser.
Manakohia:
Ka matapakihia e te tuhinga nga tikanga hei whakatika 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.