How to Fix Couldn’t Load XPCOM Error?

Reviewed by Sanam Nayab • By Fazeela Faiz • Updated on November 24, 2022

Couldn’t Load XPCOM is an error that is mostly found on Window-based Computers. It appears on Windows whenever a user tries to open Firefox or Mozilla. This happens because of too many Windows updates, messages, and other website problems. There are more chances of this virus entering a device whenever you try to install an update. Not only that, it is caused by corrupted and long-lost files or libraries. That is why whenever the users want to open a program or set up, these files create lots of trouble and give permission to error to enter in the device. You really need to check these kinds of errors or viruses from time to time before they do any harm.

These couldn’t load XPCOM error Firefox will be the reason for many technical issues that the users will face after opening an App. It comes with a list of defective programs like slow programs, freezing the system, blue or black screen errors, lock-ups, and shutdown problems. That is why it will be difficult for users to show their excellent performances on Windows or PCs. Later these defective programs will convert into errors or viruses that affect all the functional settings. One of the worst things about this error is that it can also stop a working system that could become unstable and unbootable. It will take many hours to remove the errors and viruses from the Apps or devices.

Many users face these problems; that is why creators are trying hard to resolve errors and viruses as soon as possible. Try to fix the couldn’t load XPCOM error firefox while updating an App like Firefox, Mozilla, etc. To avoid these kinds of problems, a user needs a proper setup and data to update these Apps without disturbance. This issue can also be solved by creating a new profile on Windows. Users can also switch to other browsers and many other anti-virus settings.


Why Couldn’t Load XPCOM Error Appears?

Couldn’t Load XPCOM mostly appears on Computers, Windows, and many other devices. It automatically displays on the screen as the users try to open Firefox and Mozilla. It enters the App whenever a user tries to update or upgrade these two Apps. In addition, it enters the device to stop the users from doing functional work properly on Apps or distract them by showing unnecessary messages on the screens. This error message that couldn’t load XPCOM can be fixed by creating new profiles on Windows and computers. Users can also use more browsers for the updating process and can install outstanding anti-virus Apps to scan and protect the system from time to time. Furthermore, in this article, users will also learn more advanced methods to delete the errors properly.

Methods to Fix Couldn’t Load XPCOM Error

Many users report this problem and try to fix it as soon as possible. This problem can be solved only by fixing this error whenever users upgrade or update Firefox and Mozilla. So in this list, users will find solutions to resolve these problems. Not only that, it will help the users to learn and understand the steps to fix these errors properly. These methods come with easy-to-apply steps, bewildering features, controller settings, and many other functional tools to permanently fix this problem.


Here is the list of the best couldn’t load XPCOM error firefox.

1. Create New Firefox Profile

Are you looking for the fastest method to fix the error Mozilla couldn’t load XPCOM? Then creating a new Firefox Profile will be a good option for you. It can solve this problem within a few minutes. It comes with simple and applicable steps that will help the users remove the system’s error completely.

Step 1: Open Window key settings, type Firefox on the search bar, and press enter.

Step 2: There comes a box that will allow a user to create a new profile.

Step 3: Click on the “New Profile” options.

Step 4: Enter all the information in the given box.

Step 5: After clicking on the “Finish,” wait for the further procedure

Step 6: Allows the users to create as many profiles as possible.

Step 7: Restart the Window again and check if the virus is all gone or not.

2. Start Firefox in Safe Mode

Start Firefox in Safe Mode is another fantastic method that will help users solve errors or viruses in every possible way. It allows the users to apply all its bewildering functional and controlling settings. Not only that, but it also comes with a helping tool that is an advanced feature. So with all these settings, it will be fun to use this method.

Step 1: Go to the App security setting and search for the safest options

Step 2: Click on the “Shift Key” and wait for Firefox App to open.

Step 3: Tap on the start option to apply safe mode on it.

Step 4: Provides the users an extension Window for further procedure.

Step 5: Go to the settings and disable the “Ads-On” mode.

Step 6: Restart the device again and wait for a while.

Step 7: Check the errors and viruses on Firefox or Mozilla App.

Step 8: If it shows the error again, uninstall and install it again.

3. Reset Firefox to Default

Reset Firefox is a simple method that comes with a user-friendly interface. It will help the users to fix couldn’t load XPCOM error Firefox as soon as possible. Easy-to-follow steps allow users to learn more about the mistakes and solutions to remove them completely.

Step 1: Go to the system settings option and search for the Apps.

Step 2: Tap on the App and apply a scanner to scan viruses.

Step 3: After detecting the errors or viruses, click on the “Fix it” option.

Step 4: Choose the reset option to make it usable with new settings.

Step 5: If it does not work, then go for uninstalling option and restart the device again.

Step 6: Search for the errors or viruses again and start using them again without any interruption.

Final Words

All the methods mentioned above in this article are excellent and easily available for the users. These methods have a wide range of interesting features, advanced functional settings, and modernized controlling tools. Not only that, but they also help the users to learn more about the errors or viruses and improve their error-resolving skills. Users can search for a method that will provide them with all these amazing systematic settings. Furthermore, they can easily search for these methods and download them to fix the Couldn’t Load XPCOM Error properly.

About Author
Written by
Fazeela Faiz
Fazeela Faiz is a talented content writer who has honed her craft over years of experience, producing articles that are both informative and engaging, with a writing style that is both clear and concise.
Edited by
Aleeza Aleem
With a wealth of experience as a content writer, editor, and guest blogger, Aleeza Aleem is a creative professional who excels at crafting compelling copy that drives engagement and delivers results.
Reviewed by
Sanam Nayab
Sanam Nayab is a highly skilled expert in the field of technology, with a particular focus on Alternatives Comparisons and Games. With years of experience and a deep passion for all things tech, Sanam has established herself as a leading authority in the industry. Her expertise in comparing and contrasting different alternatives is unparalleled, and she has a talent for breaking down complex concepts into easily digestible pieces.

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