Mozilla Firefox Critical Error - Get Back Your Browsing on Windows / Mac

Mozilla Firefox is one of the well known internet browsers widely used by many users at all times. Often while surfing the net, you can face critical error issue in your browser.

Mozilla Firefox critical error puts the security of your browser data at risk. This error is basically an alarm that your browser is infected and now it needs treatment.

Critical errors in Mozilla Firefox can be fixed easily by simple troubleshooting steps explained below in this article. You can completely eradicate Firefox’s critical error by going through these easy to follow troubleshooting steps.

Common Reasons for critical error on Mozilla Firefox

Firefox can gives critical error message by clicking on unwanted links coming through –

Corrupted links and pages
Faulty malware pop ups
Due to links coming from spam email messages
By accidentally clicking on fake ads
Fake promotions and unverified torrents.

Links coming from all these means create errors and infections in the browser which triggers Mozilla Firefox to give critical error.

Step-by-step guide to fix Firefox Critical error message

Unwanted links are mostly sent by scammers who try to trick you in opening such links. Thereby, once the link is opened, a popup malware is sent to your browser which causes Mozilla Firefox to give critical error.

However, this error can be easily solved by going through the below steps –

1. Mozilla Firefox giving critical error due to Malware and viruses:

While browsing the internet, you might have clicked accidentally on an add which would have opened a critical error page on your browser. These are nothing more than fake pop up messages which are sent by scammers.

Moreover, always make sure that you never call on such numbers. This can be easily fixed by following the below steps-

For Windows users-

Press “Alt” + “Ctrl” + “Delete” keys simultaneously on your keyboard.

Select and open “Task Manager”.

Here, under the “Process” section, right-click on Firefox and tap on “End Task” option.

This will now close your Firefox browser and remove critical error.

For Mac users-

First, click on “Apple” icon from the top left of the screen.

Then, click on “Force Quit” option.

Here, select Firefox browser from the list and tap on “Force Quit” option to close your browser.

2. Delete browser history, cookies and site data:

After force shutting Firefox browser, it is recommended to clear browsing history so that this malware page doesn’t appear again.

Furthermore, it is also recommended to clear cookies and site data as an extra measure of precaution. Here are the steps to do this-

Open your Firefox browser and click on the gear icon from the top right of the screen.

Then, select “Manage more settings” option.
Now, select “Privacy & Security” option from left.

Scroll-down to “Cookies and Site Data” section and hit on “Clear Data” button.

Here, check both boxes to select “Cookies” and “Cached web content” options.

Thereafter, tap on “Clear” button.

Then, scroll down further on the same page to reach “History” section and click on “Clear History” button.

Now, from time range, select “Everything”. Further, ensure that all the boxes are check marked.

Then, tap on “Clear Now” and restart your browser.

3. Remove unwanted extensions from your Firefox browser:

On many occasions, fake pop up messages can come from corrupted extensions. Therefore, make sure to identify and remove all such extensions from the browser. Here’s how to do that-

Open the Firefox menu by clicking on 3 horizontal lines.

Tap on “Add-ons and Themes” option.

Here, select “Extensions”. This will now show you list of all the installed extensions on Firefox.

Next, identify the unknown extension and click on 3 doted line next to it.
Then, tap on “Remove” option to delete that particular extension.

Similarly, repeat the process for all the extensions which you want to delete.

4. Add Ad-blocker for safety:

Most of these fake virus messages are sent by scammers through advertisements on website. However, these advertisements can be blocked by installing Ad blocker extensions. You can do this easily by following the below instructions:

First, start your Mozilla Firefox browser and in the url section type in – addons.mozilla.org and hit “Enter”.

Then in the search box, type in “addblock plus” and select the first result displayed.

Thereafter, click on “Add to Firefox” button.

Then, click on “Add” from the following pop up message.

Once its added, you will see an “Installation Successful” message displayed on your page.

So after applying all these solution you will not face again Critical error message on your Mozilla firefox browser.

Why to get rid of critical error on Mozilla Firefox?

Removal of Mozilla Firefox critical error will normalise the functioning of your browser and system.
Furthermore, you will be able to surf the net better and your personal information available online will be safe guarded.
Getting rid of critical error on Firefox can save you from loosing your account passwords, saved credit card informations and other personal data.
Cyber infections have increased over a recent period of time but by going through the above explained steps and precautions, you can protect yourself from such attacks.
Mozilla Firefox Freezing Up is a common error where the unresponsive page needs to be treated so that a smooth and secure function is established.
Data protection and security is important at all times. If this is not done, it can severely damage your system.
Firefox critical error can tamper your privacy, password of your email and other personal online profiles.

Conclusion:

The best way to avoid Mozilla Firefox Critical Error is by taking all safety precautions. Therefore, do weekly viruses scan for the computer. Moreover, use Ad-blocker at all times and avoid clicking on advertisements.

This error makes the available web pages unresponsive and it may take more than normal time to load. Therefore, the cache files and the cookies needs to be deleted. Hence, make sure to go through all the explained troubleshooting steps in this article one by one.