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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Rêbaz 1: Rêbazên Çareserkirina Pirsgirêkên Bingehîn
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. PC-ê ji nû ve bidin destpêkirin
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, click on the Erk button at the bottom-left corner, and click on the Restart option to restart your PC.
2. Têkiliya Înternetê kontrol bikin
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Test testê 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. Destpêkirin Mîhengên bi zorê Bişkojkên Windows + I bihevra.
2. Kılik lı ser Apps çêkirin.
3. Kılik lı ser Default apps li ser çepê çepê.
4. Scroll down and click on the current Geroka gerok.
5. Choose from the option as per your preference.
Her weha bixwîne: Meriv çawa rûpelên ku Firefox-ê nayên barkirin rast dikin
4. Pelên Demkî Paqij bikin
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. Windows-ê nûve bikin
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. Pirsgirêka Rojane ya Windows-ê bicîh bikin
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. Performansa Pergalê Vegerînin
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.
Her weha bixwîne: Têkiliya xwe li ser Firefox ne Çewtiya Ewle ye rast bikin
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. Pressap bikin Kilîta Windows, cureyê Firefox û li ser hilbijêre Wekî birêvebirin dibe.
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. Lêxin Kilîta Windows, cureyê Firefox û bitikîne Vekirî.
2. Li ser binêrin Open Application Menu button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Mîhengên vebijarka li ser navnîşa xuyangkirî.
3. Di giştî tablove, li ser hilbijêre Ji bo agahdariyên kontrol bikin qutikê di nav Nûvekirinên Firefox liq.
4. Hûn ê bibînin Firefox rojane ye message on the Firefox Updates section.
Not: 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. Destpêkirin Firefox ji ji Search Search bar
2. Piştre, li ser bitikîne Open Application Menu bişkojkê û bikirtînin Alîkarî vebijarka li ser navnîşa xuyangkirî.
3. Li ser binêrin Troubleshoot Mode… di Firefox help pace.
4. Niha, li ser bitikîne Restart bişkok li ser Firefox-ê di moda Pirsgirêkan de ji nû ve bidin destpêkirin pencereya pop-up.
5. Li ser binêrin Firefox Refresh bişkok li ser Open Firefox in Troubleshoot Mode confirmation window.
6. Piştre, li ser bitikîne Firefox Refresh bişkok li ser Refresh Firefox to its default settings pace.
7. Di dawiyê de, li ser bikirtînin Qedandin bişkok li ser 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. veke Mozilla Firefox ji ji Search Search bar
2. Li ser binêrin Open Application Menu bişkojkê û bikirtînin Alîkarî vebijarka li ser navnîşa xuyangkirî.
3. Niha, li ser bitikîne Troubleshoot Mode… di Firefox help pace.
4. Li ser binêrin Vekirî bişkok li ser Firefox-ê di moda Pirsgirêkan de ji nû ve bidin destpêkirin pencereya pop-up.
5. Piştre, li ser bitikîne Open Application Menu bişkojkê û bikirtînin Pêvek û mijar vebijêrk di lîsteyê de.
6. Li ser binêrin niçikan tabloya li ser pencereya çepê ya pencereya paşîn û biguherînin ji pêvekên li ser pencereyê.
7. Piştre, li ser bitikîne sê nuqteyên asoyî li ser pêvekê bişkojka û li ser bikirtînin Dûrxistin button di lîsteyê de.
8. Li ser binêrin Dûrxistin 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. veke Mozilla Firefox app.
2. Li ser binêrin Open Application Menu bişkojkê û bikirtînin Bijare option in the list displayed.
3. Di Bijare menu, bikirtînin Nîşanan bi rê ve bibin option at the bottom of the list.
4. Di Pirtûkxane screen, li ser hilbijêre Import and Backup button at the menu bar and click on the Export Bookmarks to HTML… option in the drop-down menu displayed.
5. Di Export Bookmarks File window, browse and select a location, and click on the Tomar bike 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. Destpêkirin Firefox sepana gerokê.
2. Awa li ser: profiles in the URL address bar at the top and press the Derbasbûn kilîta vekirina About Profiles pace.
3. Li ser binêrin Profîlek Nû Biafirînin bişkoka li ser pencereyê.
4. Piştre, li ser bitikîne Piştî bişkok li ser Welcome to the Create Profile Wizard.
5. Type a name for the Profile in the Navê profîla nû binivîse zeviyê û li ser bikirtînin Qedandin button in the window to create the Profile.
Not: li ser Click Choose Folder… button to change the location for storing the User Profile name instead of the default location.
Her weha bixwîne: Firefox-ê jixwe dimeşîne rast bikin
Rêbaz 7: Firefox-ê ji nû ve saz bikin
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. Pressap bikin Kilîta Windows, cureyê panelê kontrol bikin û bitikîne Vekirî.
2. Click on the option Liq di View by drop-down menu and click on the Rakirina bernameyek bijartî di Programs sernivîs.
3. Hilbijêrin Mozilla Firefox (x64 en-US) di navnîşê de, li ser bikirtînin Rakirin bişkojka li jorê barikê û li ser bikirtînin Erê bişkojka li ser pencereya UAC.
4. Piştre, li ser bitikîne Piştî qutikê di nav Mozilla Firefox Rakir wizard.
5. Piştre, li ser bitikîne Rakirin bişkojka di pencereya pêş de.
6. Li ser binêrin Qedandin bişkojka li ser pencereya paşîn da ku bi tevahî sepana Firefoxê rakin.
7. Pressap bikin Windows+ E keys bi hev re pelê Explorer-ê vekin û bigerin Ev PC> Dîska Herêmî (C:)> Pelên Bernameyê> Mozilla Firefox pêçek.
8. Li ser-rast-bikirtînin Mozilla Firefox peldankê û li ser bikirtînin Vemirandina vebijarka di navnîşê de ji bo jêbirina pelan.
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. Lêxin Kilîta Windows, cureyê chrome google û bitikîne Vekirî.
Not: Hûn dikarin her gerokek webê bikar bînin da ku geroka Firefox-ê li ser PC-ya xwe dakêşin.
2. Malpera fermî ya ya Geroka Mozilla Firefox li ser Google Chrome û bikirtînin Firefox daxistin bişkoka li ser pencereyê.
3. Li ser pelê dakêşandî du caran bikirtînin Installer Firefox.exe ku pelê sazkirinê bimeşîne.
4. Li benda qedandina pêvajoya sazkirinê bisekinin.
5. Destpêkirin Firefox Serlêdana Geroka Webê li ser komputera we.
Her weha bixwîne: Fix No Sound in Firefox on 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. veke Firefox app.
2. Li ser binêrin Open Application Menu bişkojkê û bikirtînin Mîhengên vebijarka li ser navnîşa xuyangkirî.
3. Di giştî tablove, li ser hilbijêre Mîhengên… qutikê di nav Settings Settings liq.
4. Hilbijêrin Manual proxy configuration vebijarka li ser Mîhengên Girêdanê pace.
5. Awa SOCKS Host: 127.0.0.1 Port: 9050 di Nûnerê HTTP zevî, cureyê 8080 di bender field, and click on the OK pişkov.
6. Piştre, binivîse Derbarê: mîheng kirin on the search bar of the Firefox browser and click on the Rîskê qebûl bikin û bidomînin pişkov.
7. Finally, type network.proxy.socks_remote_dns di barika lêgerînê de û li ser bikirtînin tug button to set the type of the entry to be rast.
8. Niha, binivîsin https://check.torptoject.org/ in the search bar on the Firefox browser and press the Derbasbûn key to check the issues with the Tor Browser.
Baştir e:
The article discusses the methods to fix 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.