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Is Firefox crashing Issues also interrupting while opening? Well, the common cause for that can be an installation error or can be some technical issue that many users are unable to troubleshoot by themselves. Thus they need assistance. Mozilla Firefox is one of the best and most trusted web browsers available online on which users can rely on. The reason why Mozilla still exists in the list of top browsers is the constant updates made in Firefox as per the user’s demands.

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However, even after constant updates and various features for providing ease of convenience to the users, errors constantly show up, among which the most common one is when the Firefox web browser starts to crash repeatedly, and users are unable to access the internet. Thus, here we have provided all the information, including common causes due to which Mozilla crashes and common solutions based on which users might be able to fix Firefox’s constant crashing problems.

Common Causes Why Firefox Not Working and Constantly Crashes

The most probable cause due to which the Firefox web browser kept crashing constantly is that you have not properly downloaded the Mozilla installation file on your computer, due to which it is unable to load properly in the system. Other technical causes for Mozilla crashing in the system are listed below:

You might not have updated the latest version of Mozilla in your system.
Any unwanted or suspected add-ons or extensions in the system can cause Mozilla to crash repeatedly without any cause.
Mozilla might crash due to cache files saved in the browser in the background.
There might be a chance the browser is incompatible with the security software you are currently using, and due to security concerns, it is constantly interrupted by the Antivirus.
You might need to disable the hardware acceleration feature in your web browser.
Your system might have some pending updates or drivers to be installed, due to which the operating system is unable to load the web browser.

How to Fix the “Mozilla Firefox Keeps Crashing” Issue

Based on the causes mentioned, you can take the given measure, which is discussed step-by-step, to fix the Mozilla Firefox issue:
Uninstall and Reinstall when Firefox not working
You need to uninstall the web browser from the control panel and download it properly with a stable internet connection. Following are the steps for uninstalling and reinstalling the Firefox Browser :

Go to the control panel, and from there, navigate to the section “Program and Features.”
After that, click on the option “Uninstall a Program,” after which a list of programs will appear, from which you need to select Mozilla Firefox.
Right-click on it and then click Uninstall.
Now delete the other remaining folder related to Mozilla Firefox, which still remains even after the uninstallation from the program. You can check for the remaining Firefox files in the “C” drive.

In order to Reinstall, you need to open your default web browser and then type Mozilla Firefox in the search option.

From the list of results, select Mozilla Firefox download and click on it.
From the official website, you can have the latest version of the web browser and click on it to start the downloading process.
Once the file has been downloaded, navigate to the download folder and double-click on the file to start the installation process.

Run an Antivirus scan and check for any Malware or Unknown Application

You need to run an antivirus scan in your and search for any malware files or any applications from unknown sources. The likelihood of Firefox being crashed by other unknown applications is quite high. Thus check out for any unknown application or virus, and in case you detect one then remove it from the system and try to run Mozilla again.

Update Mozilla Firefox to the Latest Version

In order to deal with Mozilla Firefox not working error, you need to update the browser to the latest version. In order to update to the latest version, follow the given steps:

Open Firefox and navigate to the three-bar option on the right-hand side of the window.
From the drop-down menu, select the settings option, and after that, go to General Settings.
There you can find the option “Check for Updates.” Click on it and wait for a few minutes.
After that, two options will be available on the screen from which you need to click on “Restart to Update Firefox.” Make sure you have checked the option “Automatically Install Updates” option.

Clear Browsing History in Firefox browser, including all the Cache Files

A corrupted cache in the browsers can create a hindrance while accessing the internet. In case you want to remove the corrupted cache files from the Mozilla Firefox Web Browser, follow the given steps:

Launch the Mozilla browser and then go to the menu icon on the right side of the window.
From the drop-down menu, select “History,” and from the side menu, select “Clear Recent History.”
You need to select “Everything” from the time range and tick mark on every option, and after that, select “Clear Now.”
Now try to run Mozilla Firefox again.

Clear Other Firefox Temporary Files from the system

Now that you have cleared the browsing history in Firefox along with the cache files, you need to remove all the files and folders related to the web browser in your system

Open the Run window in your system, and there, type the following command:
C:\Users\%username%\AppData\Local\Mozilla\Firefox\Profiles\
Now, you need to navigate to the folder with “default-release” and open it. Select all the folder which has the name “cache” in them and delete them.

Disable other Add-ons and extensions from the Firefox Browser

Select the menu icon on Firefox, and from the drop-down, select help.
From the new window, you need to click on “Restart with Add-ons” disabled.

Update the System Driver

It is necessary to update the system driver for other applications to run properly in it. To check and update the system drivers, follow the given steps:

You have to open the device manager.
Now open the run prompt, and there you need to type “devmgmt. msc”.
In the device manager, you will see the list of devices. There you can see the apps which need a critical update with an exclamation mark.
Right-click on them and select “Update Drivers.”

Fix Firefox Crashing Issues on Android

If your Firefox is not working on android, you can take the same measure as mentioned above. However, You can also manually synchronize on desktop device, then try to run Mozilla on the Android device. Which might fix the Firefox constantly crashing issues on Android.

Firefox Crashing Issues on iPhone

You can offload the Firefox browser application through the general setting of your iPhone, if its crashing on iPhone.

Final Words

After reading this post, you can easily troubleshoot crashing issues of Firefox web browser. From the above discussion, we conclude that the basic measure to fix Mozilla Firefox is to keep your system and browser updated and remove other unnecessary applications from the system. In case you need any further assistance, you can contact us at +1-855-362-0770, where our technical expert will connect with you and provide you required help in fixing any issue you are having not only with Mozilla but any other browser. You can also connect through live chat on which we will revert within a given time with the desired solution.

Sometimes Secure Connection in Mozilla Firefox Failed, due to some technical issues. Mozilla Firefox is one of the best web browsers with the largest user base after Google Chrome, Safari, and Edge. Based on the Gecko Browser Engine, Firefox is open-source software available to everyone for free. One of the best features which are common among various web browsers is the multiple tabs option and the compatibility to add different extensions in the browser along with other security features. All these features are present in Mozilla Firefox, which keeps it on the list of the largest web browsers.

How to Fix 403 Forbidden Error on Mozilla Firefox?

However, sometimes, due to security concerns, users face issues while accessing a webpage in which a browser displays the message “Secure Connection Failed” or “Did Not Connect: Potential Security Issue.” Although it can be a security concern that could compromise the security of their system, users still want to load the webpage. For those users, we will provide all the available information on the Mozilla Firefox “Secure Connection Failed” error apart from various measures on how to fix it. Read the article further to fix Mozilla Secure Connection Failed Issue.

Why does the Firefox “Secure Connection Failed” Message

The main common cause for this error is the issue with the website certificates. Transport Layer Security Certificates are electronic certificates/documents through which any browser can verify the identity and prove the validity of the websites. These TLS certificates are particularly used by the website whose addresses consist of “HTTPS.” Through the TLS certificate, a secure and encrypted connection is established between the browser and the website. However, sometimes, when Mozilla Firefox is unable to verify the security certificates, they display the following message:

Firefox Secure Connection Failed
Did Not Connect: Potential Security Issue

Causes of Failed Secure Connection in Firefox

Some of the common cause why the browser is unable to verify the TLS certificates are listed below:

The TLS certificates for the websites are outdated and, thus, no longer secure because they are restricted by Mozilla Firefox.
Because of the HTTP Strict Transport Security (HSTS), the website does not allow the website to have access because of an insecure connection.
Any Antivirus may restrict the loading of the webpage: Due to security concerns with the website, the Antivirus installed in your system will stop the browser from opening that page, thus displaying the “Secure Connection Failed” message.
Incorrect Date and Time in the system: Sometimes due to incorrect time and date settings in your computer, the browser is unable to verify the security certificates and thus loads errors while displaying the webpage.

How to Fix Mozilla Firefox Secure Connection Failed Issue

Various methods to establish a secure connection in Firefox can be taken, some of which are listed below:

1. Change your Mozilla Firefox Settings

SSL role in secure connection is crucial, due to which the Firefox Secure Connection Failed error may appear on the screen. It can be avoided by changing the Firefox browser settings, which are discussed below:

Reset the Firefox Secure Socket Layer (SSL) settings
Launch the Firefox Mozilla browser, and there, in the top-right corner, open the menu from which you can find the Help option. Click on it.
In the Help menu, select “More Troubleshooting Information.”
On the new page, you can find the option “Refresh Firefox” under the section “Give Firefox a Tune-Up.”
A pop-up will appear on the screen, which will provide a warning message that refreshing Firefox will clear all the Firefox Data. Click on “Refresh Firefox.”
Now the browser has been restored to the default settings. Try to open the webpage again from which you are encountering the Secure Connection Failed message.

2. Impair the DNS Settings in Firefox.

While opening any webpage, the browser sends the Domain Name Server request in order to verify that the website you are visiting is safe and secure and does not contain any malware file which might damage your system or keep your data at risk. However, due to DNS requests, the user is unable to access any website as it might be safe to access. In case the cause for the “Secure Connection Failed” error is For the DNS request, then you might disable the DNS settings for which the steps are listed below:

Click on the menu option in the top-right corner of Mozilla Firefox. Now from that, open settings.
Under the settings, navigate to the option “Network Settings.” There you can find an option marked as “Enable DNS over HTTPS” with a check box near it.
Remove the tick mark from that checkbox and then click Okay to make changes.
Now try to launch the webpage again, from which you are getting trouble.

3. Disable the Antivirus Software.

As the reason to block any webpage loading in your system is a security concern, there might be a possibility that the Antivirus you are using in your system has detected malware or virus files and thus restricted that webpage from loading on the browser. To override this cause, you need to disable the Antivirus on your computer temporarily.

Change the SSL Setting in your Mozilla Firefox Web Browser
You can also change the SSL Setting in your Mozilla web browser from the steps given below:

Open the Mozilla Firefox Web Browser, and in the address bar, type “about:config.” Once you have clicked enter, a pop-up will appear on the screen with the message “This might void your warranty.”
Click on the option “I accept the risk.”
Now in the search box, type “security.ssl.enable_ocsp_stapling,” and then in the result, select the Value to False, which will disable SSL security from the web browser.
Now open the page you were trying to load earlier.

4. Change the Proxy Server Settings

You need to change the proxy settings in the Firefox browser. To do that, you need to navigate to the upper right corner of the Firefox Browser and then, open the menu, and after that, follow the given steps:

Select the “Tool” option.
Now click on the “Option” and then select “Advanced.” This will open a new page, and you need to go to the “Network” tab.
Select the “Settings” icon, after which a new pop-up will appear on the screen Title “Connection Settings’.
Here you need to tick the check box next to the option Manual Proxy Connection.
After that, check for other details and then press OK.

5. Disable the Add-ons on Firefox and Correct the Date and Time on your Computer

You need to disable the other Add-ons and delete the extensions on your system through which there can be a security issue to your system. Apart from that, you need to correct the data and time in your system. You can easily do that by typing the date and time in the search menu of your Windows, after which you can change the date and time.

Reach Out to Us to Troubleshoot Mozilla Firefox Issues.

From the above discussion, we can hope that now you can easily override the secure connection that failed in your system. However, in case you still need assistance, you can reach out to our technical support service. You can contact us by dialling +1-855-362-0770, through which you will connect instantly to our customer support expert, who can resolve your issues. Also, we provide assistance to fix any issues not only with Mozilla Firefox. You can reach us through the live chat with your query, to which we will revert immediately.

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