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- Outdated Firefox- The outdated version of the Firefox app may cause this error.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.
Усули 1: Усулҳои асосии ҳалли мушкилот
The first approach to solve the Couldn’t load XPCOM error is to try the basic troubleshooting methods listed in this section.
1. Компютерро бозоғоз намоед
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 калид, пахш кунед ҳокимият button at the bottom-left corner, and click on the Оғози дубора имконоти бозоғоз кардани компютери шумо.
2. Пайвасти интернетро санҷед
An unstable Internet connection may hinder you from using the Firefox browser. You can check the speed of the connection using the Санҷиши суръат 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. Лоиҳа Танзимот бо пахшкунии Тугмаҳои Windows + I якҷоя.
2. Тафтиш кунед барномаҳо танзим.
3. Тафтиш кунед Барномаҳои алоҳида дар панели чап
4. Scroll down and click on the current Браузер.
5. Choose from the option as per your preference.
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4. Файлҳои муваққатиро нест кунед
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. Навсозии 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. Васлкунакро аз Windows навсозӣ кунед
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. Барқарорсозии системаро иҷро кунед
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.
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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. -Ро пахш кунед Калиди Windows, намуд Firefox ва пахш кунед Роҳбариятро идора кунед хосият.
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. -ро пахш кунед Калиди Windows, намуд Firefox ва пахш кунед кушодан.
2. Тафтиш кунед Open Application Menu button (indicated by the three horizontal lines) at the top-right corner of the home page and click on the Танзимот хосият дар рӯйхат нишон дода мешавад.
3. Дар генерал ҷадвал, клик кунед Навсозӣ санҷед тугмаи дар тарафи Навсозии Firefox ҷудокунӣ.
4. Шумо мебинед Firefox навсозӣ шудааст message on the Firefox Updates section.
Шарҳ: 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. Оғози Firefox аз ҷониби Windows Search бар
2. Баъдан, пахш кунед Open Application Menu тугмаро пахш кунед ва Кӯмак хосият дар рӯйхат нишон дода мешавад.
3. Тафтиш кунед Troubleshoot Mode… дар Firefox help тиреза.
4. Акнун, пахш кунед Оғози дубора тугмаи дар Firefox-ро дар реҷаи ҳалли мушкилот аз нав оғоз кунед равзанаи поп-ап.
5. Тафтиш кунед Firefox навсозӣ кунед тугмаи дар Open Firefox in Troubleshoot Mode равзанаи тасдиқ.
6. Сипас, -ро пахш кунед Firefox навсозӣ кунед тугмаи дар Refresh Firefox to its default settings тиреза.
7. Дар охир, пахш кунед тамом кардан тугмаи дар 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. Кушодани Mozilla Firefox аз ҷониби Windows Search бар
2. Тафтиш кунед Open Application Menu тугмаро пахш кунед ва Кӯмак хосият дар рӯйхат нишон дода мешавад.
3. Акнун, пахш кунед Troubleshoot Mode… дар Firefox help тиреза.
4. Тафтиш кунед кушодан тугмаи дар Firefox-ро дар реҷаи ҳалли мушкилот аз нав оғоз кунед равзанаи поп-ап.
5. Баъдан, пахш кунед Open Application Menu тугмаро пахш кунед ва Иловаҳо ва мавзӯъҳо вариант дар рӯйхат.
6. Тафтиш кунед васеъшавии tab on the left pane of the next window and toggle хомӯш кардан the add-ons on the window.
7. Сипас, -ро пахш кунед се нуқтаи уфуқӣ button on the add-on and click on the хориҷ button on the list.
8. Тафтиш кунед хориҷ 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. Кушодани Mozilla Firefox барнома.
2. Тафтиш кунед Open Application Menu тугмаро пахш кунед ва Bookmarks option in the list displayed.
3. Дар Bookmarks менюро пахш кунед Хатчӯбҳоро идора кунед option at the bottom of the list.
4. Дар китобхона экранро пахш кунед Import and Backup button at the menu bar and click on the Export Bookmarks to HTML… option in the drop-down menu displayed.
5. Дар Export Bookmarks File window, browse and select a location, and click on the Захира 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. Оғози Firefox барномаи браузер.
2. Намуди дар бораи: профилҳо in the URL address bar at the top and press the даромадан калиди кушодани About Profiles тиреза.
3. Тафтиш кунед Профили нав эҷод кунед button on the window.
4. Баъдан, пахш кунед Баъдӣ тугмаи дар Welcome to the Create Profile Wizard.
5. Type a name for the Profile in the Номи профили навро ворид кунед майдон ва пахш кунед тамом кардан button in the window to create the Profile.
Шарҳ: дар бораи ангушт занед Choose Folder… button to change the location for storing the User Profile name instead of the default location.
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Method 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. -Ро пахш кунед Калиди Windows, намуд панел ва пахш кунед кушодан.
2. Click on the option категория дар Намоиш аз drop-down menu and click on the Як барнома насб кунед варианти дар барномаҳои сарлавҳа.
3. Интихоб кунед Mozilla Firefox (x64 en-US) in the list, click on the Uninstall button at the top of the bar and click on the ҳа тугмаи дар равзанаи UAC.
4. Сипас, -ро пахш кунед Баъдӣ тугмаи дар тарафи Mozilla Firefox Uninstall устод.
5. Баъдан, пахш кунед Uninstall button in the next window.
6. Тафтиш кунед тамом кардан button on the last window to completely uninstall the Firefox app.
7. -Ро пахш кунед Windows+ E калидҳои together to open the File Explorer and navigate to the This PC > Local Disk (C:) > Program Files > Mozilla Firefox ҷузвдон интихоб кунед.
8. Ангушт занед Mozilla Firefox папка ва пахш кунед Нобуд 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. -ро пахш кунед Калиди Windows, намуд google хромӣ ва пахш кунед кушодан.
Шарҳ: You can use any web browser to download the Firefox browser on your PC.
2. Вебсайти расмии онро кушоед Браузери Mozilla Firefox on Google Chrome and click on the Firefox -ро пахш кунед button on the window.
3. Double-click on the downloaded executable file Firefox Installer.exe to run the installation file.
4. Мунтазир бошед, ки раванди насбкунӣ ба итмом расад.
5. Оғози Firefox Web Browser app on your PC.
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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. Кушодани Firefox барнома.
2. Тафтиш кунед Open Application Menu тугмаро пахш кунед ва Танзимот хосият дар рӯйхат нишон дода мешавад.
3. Дар генерал ҷадвал, клик кунед Танзимот… тугмаи дар тарафи Танзимоти шабака ҷудокунӣ.
4. Интихоб кунед Manual proxy configuration хосият оид ба Танзимоти пайвастшавӣ тиреза.
5. Намуди SOCKS Host: 127.0.0.1 Port: 9050 дар Прокси HTTP майдон, навъи 8080 дар бандаргоҳ field, and click on the OK тугмача.
6. Сипас, нависед Дар бораи: config on the search bar of the Firefox browser and click on the Таваккалро қабул кунед ва идома диҳед тугмача.
7. Finally, type network.proxy.socks_remote_dns дар сатри ҷустуҷӯ ва клик кунед гузаштан button to set the type of the entry to be ҳақиқӣ.
8. Акнун, нависед https://check.torptoject.org/ in the search bar on the Firefox browser and press the даромадан key to check the issues with the Tor Browser.
тавсия мешавад:
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.