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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Method 1: Basic Troubleshooting Nzira
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Tangazve 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 kiyi, tinya pa simba button at the bottom-left corner, and click on the Dzorerazve sarudzo yekutangazve PC yako.
2. Tarisa Kubatana kweInternet
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Yekumhanya bvunzo 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. Tanga Settings nokudzvinyirira Windows + I kiyi pamwe chete.
2. Dzvanya Apps kurongedza.
3. Dzvanya Default apps kuruboshwe kuruboshwe.
4. Scroll down and click on the current Web browser.
5. Choose from the option as per your preference.
Uyewo Verenga: Maitiro ekugadzirisa Firefox Isiri Kurodha Mapeji
4. Bvisa maFaira enguva pfupi
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. Gadzirisa Mafaira Akashata
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. Gadzirisa 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. Mhanya Windows Dzokorora 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. Ita 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.
Uyewo Verenga: Gadzirisa Connection yako haisi Yakachengeteka Kanganiso paFirefox
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. Tinya Windows key, tanga Firefox uye chengeta pa Mhanya semutungamiri kuita.
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. Rova Windows key, tanga Firefox uye tinya Open.
2. Dzvanya pane Vhura Menyu Yekushandisa button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Settings sarudzo pane rondedzero inoratidzwa.
3. Mu General tab, kanda pane Chengetedza zvinyorwa bhatani mu Firefox Dzidzo chikamu.
4. Uchaona iyo Firefox ndeyezvino message on the Firefox Updates section.
Cherechedza: 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. Vhura iyo Firefox app from the Windows Search bara.
2. Zvadaro, tinya pa Vhura Menyu Yekushandisa bhatani uye tinya pane iyo batsira sarudzo pane rondedzero inoratidzwa.
3. Dzvanya pane Troubleshoot Mode… mu Firefox rubatsiro hwindo.
4. Zvino, tinya pa Dzorerazve bhatani pane Tangazve Firefox mu Troubleshoot Mode pop-up hwindo.
5. Dzvanya pane Zorodza Firefox bhatani pane Open Firefox in Troubleshoot Mode hwindo rekusimbisa.
6. Zvadaro, tinya pa Zorodza Firefox bhatani pane Refresh Firefox to its default settings hwindo.
7. Pakupedzisira, tinya pane iyo pedza bhatani pane Import Complete window to Refresh Firefox completely.
Uyewo Verenga: Gadzirisa Server Haina Kuwanikwa Kanganiso muFirefox
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. Zarura Mozilla Firefox app from the Windows Search bara.
2. Dzvanya pane Vhura Menyu Yekushandisa bhatani uye tinya pane iyo batsira sarudzo pane rondedzero inoratidzwa.
3. Zvino, tinya pa Troubleshoot Mode… mu Firefox rubatsiro hwindo.
4. Dzvanya pane Open bhatani pane Tangazve Firefox mu Troubleshoot Mode pop-up hwindo.
5. Zvadaro, tinya pa Vhura Menyu Yekushandisa bhatani uye tinya pane iyo Add-ons uye themes sarudzo pane rondedzero.
6. Dzvanya pane Extensions tab on the left pane of the next window and toggle kure the add-ons on the window.
7. Zvadaro, tinya pa matatu akatetepa button on the add-on and click on the Bvisa button on the list.
8. Dzvanya pane Bvisa 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. Zarura Mozilla Firefox App.
2. Dzvanya pane Vhura Menyu Yekushandisa bhatani uye tinya pane iyo Bookmarks sarudzo mune rondedzero inoratidzwa.
3. Mu Bookmarks menyu, tinya pane Manage mabhukimaki option at the bottom of the list.
4. Mu Library screen, tinya pane iyo Import uye Backup button at the menu bar and click on the Tumira kunze Mabhukumaka kuHTML... option in the drop-down menu displayed.
5. Mu Export Bookmarks File window, browse and select a location, and click on the Save bhatani rekuchengetedza iyo bookmark faira.
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. Vhura iyo Firefox browser app.
2. Tora nezve: ma profiles in the URL address bar at the top and press the pinda kiyi yekuvhura iyo About Profiles hwindo.
3. Dzvanya pane Gadzira iyo Nyowani Mbiri bhatani pahwindo.
4. Zvadaro, tinya pa Next bhatani pane Kugamuchirwa kuGadzira Profile Wizard.
5. Type a name for the Profile in the Isa zita nyowani nyowani field uye tinya pa pedza bhatani pahwindo kugadzira iyo Profile.
Cherechedza: Click on Choose Folder… button to change the location for storing the User Profile name instead of the default location.
Uyewo Verenga: Gadzirisa Firefox Yatova Kumhanya
Nzira 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. Tinya Windows key, tanga control panel uye tinya Open.
2. Dzvanya pane sarudzo chikamu mu Wona ne drop-down menu and click on the Uninstall chirongwa chisarudzo mu Chirongwa musoro.
3. Sarudza iyo Mozilla Firefox (x64 en-US) in the list, click on the Uninstall bhatani kumusoro kwebhari uye tinya pane Ehe button on the UAC window.
4. Zvadaro, tinya pa Next bhatani mu Mozilla Firefox Uninstall wizard.
5. Zvadaro, tinya pa Uninstall button in the next window.
6. Dzvanya pane pedza button on the last window to completely uninstall the Firefox app.
7. Tinya Windows+ E makiyi together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox forodha.
8. Tinya-kurudyi pane iyo Mozilla Firefox folda uye tinya pane Kudzima 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. Rova Windows key, tanga google Chrome uye tinya Open.
Cherechedza: You can use any web browser to download the Firefox browser on your PC.
2. Vhura webhusaiti yepamutemo ye Mozilla Firefox browser on Google Chrome and click on the Download Firefox bhatani pahwindo.
3. Double-click on the downloaded executable file Firefox Installer.exe to run the installation file.
4. Mirira kuti kuiswa kwacho kupedze.
5. Vhura iyo Firefox Web Browser app on your PC.
Uyewo Verenga: Gadzirisa Hapana Ruzha muFirefox pa 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. Zarura Firefox App.
2. Dzvanya pane Vhura Menyu Yekushandisa bhatani uye tinya pane iyo Settings sarudzo pane rondedzero inoratidzwa.
3. Mu General tab, kanda pane Zvirongwa… bhatani mu Network Settings chikamu.
4. Sarudza iyo Manual proxy configuration sarudzo pane Kubatanidza Zvirongwa hwindo.
5. Tora SOCKS Host: 127.0.0.1 Port: 9050 mu HTTP-Proxy munda, pata 8080 mu poti field, and click on the OK bhatani.
6. Zvadaro, nyora About: gadziriso on the search bar of the Firefox browser and click on the Gamuchira Njodzi uye Enderera bhatani.
7. Finally, type network.proxy.socks_remote_dns in the search bar and click on the toggle button to set the type of the entry to be zvechokwadi.
8. Zvino, nyora https://check.torptoject.org/ in the search bar on the Firefox browser and press the pinda key to check the issues with the Tor Browser.
akakurudzira kuti:
Chinyorwa chinokurukura nzira dzekugadzirisa 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.