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Solve If Your Firefox Keeps Crashing Through Easy Ways

Firefox is one of the oldest and the most used browser on Windows OS. It always loads its updates automatically after restarting. However, there are a few common problems which users face while using the browser, Firefox keeps crashing is one of them.

If this is the issue you are worried about and want to fix it as soon as possible, then you can read this article till the end. From the content of this article, you will get all the essential information regarding the crashing problem of the Firefox browser, which also includes the solution procedure.

What Causes the Firefox Keeps Crashing Issue?

There are numerous factors which are identified by the experts conspiring together to crash your Firefox down problem. To look into them, follow below:

  • A virus attack
  • Slow internet connection
  • Usage of the unsupportable add-ons on the Firefox browser
  • Conflict with the third-party antivirus software

If you are struggling to find the methods of “how to fix the Firefox keeps crashing Windows 10 error?”, then you can try the fixes as explained in this article.

Here, in this article, you will only get the methods, with the application of which most of the users already got a positive result in fixing the problem.

Methods to Fix the Errors Causing the Firefox Crashing Windows 10

From this section of this article, you are going to learn the easiest and the most beneficial methods of fixing Firefox keeps crashing glitch. So, without wasting any more time, let’s check them. It is advised to try the methods one by one as arranged. If you are lucky, then after trying a few of the methods you find that the error gets resolved. And thus, you can use the Firefox browser in a normal manner.

Before trying any of the core methods of fixing the Firefox crashes Windows 10 issue, it is better to run a complete virus scan of your PC. And the best tool to use for this virus scanning purpose is the Windows Defender, that is the default Windows security tool. The steps to scan your PC with the help of the Windows Defender are as follows:

  1. At first, you need the navigate the mouse pointer on the Windows logo, and then right-click on it.
  2. After that, from the menu window select the Settings option.
  3. Then, click on Update & Security from the available options under Settings.
  4. Now, from the left-hand side panel of the Settings window select Windows Security.
  5. Further, go to the right-hand pane. Here, you will get the Open Windows Defender Security Center button, click on it. This will open up the Windows Defender window.
  6. Then, from the Windows Defender window, select the “Virus & threat protection” option.
  7. After that, click on the Advanced scan link, that is present at the top of the Scan now button.
  8. Next, enable the checkbox for Full.
  9. Lastly, click on the Scan now button. This will start scanning your PC thoroughly. It will take several minutes to get the scanning process completed.
  10. Once the scanning is done, now try to open the Firefox browser to check if the issue gets resolved or not.

Method 1: Update Firefox Manually

Sometimes, due to a server issue of the Mozilla Firefox, the browser not gets updated successfully. In that case, Firefox keeps crashing issue arises. If this is the reason behind the issue, then to fix the problem instantly, you need to follow the steps as stated below:

  1. At first, launch the Firefox browser, and then wait until the Firefox window loaded successfully.
  2. After that, select the menu icon of Firefox, that is present near the top right-hand corner of the Firefox window. The Firefox menu icon is designed as three horizontal lines placed parallelly inside a box.
  3. From the Firefox menu window, click on the Help option.
  4. Then, under the Help window, you will get an option as About Firefox, select it. After selecting the About Firefox option, the browser starts to browse the internet in search for the Firefox update. If an update is available, then Firefox will automatically install that for you. 
  5. Now, close the Firefox browser and wait for a second.
  6. Then, reopen the Firefox browser to check if the matter gets sorted or not.

Method 2: Remove the Cache Files from your Browser

If you are already using the updated version of the Firefox browser, and facing the Firefox keeps crashing glitch. In that case, to fix the matter, you need to clear Firefox cache files. And the steps you need to follow to do this task are as follows:

  1. Launch the Firefox browser.
  2. After that, click on the menu icon of Firefox.
  3. Then, from the menu window options, select Library.
  4. Next, click on History> Clear Recent History.
  5. Now, under the Clear All History window drop-down menu for “Time range to clear” and set it as Everything.
  6. Further, ensure that the below-said checkboxes are enabled under the Clear All History window. And if you find any of the checkboxes is left, then enable that/ those by a single click on the checkbox.
  • Browsing & Download History
  • Active Logins
  • Form & Search History
  • Cookies
  • Cache
  • Site Preferences
  • Offline Website Data
  1. And lastly, click on the Clear Now button to start the process. It will hardly take a minute, to gets completed.
  2. Once the cache files get removed, close the Firefox browser.
  3. After that, relaunch Firefox and now use it for a few minutes to check if the issue gets resolved or not. Hopefully, your answer will be Yes and if no then follow the further method.

Method 3: Disable Firefox Add-ons

Add-ons add the excess advantages of the Firefox browser. However, sometimes these Add-ons are also affecting badly to the browser and can cause Firefox keeps crashing issue. To fix this, you need to disable the Add-ons on Firefox. And the steps to allow to disable the Firefox Add-ons are as follows:

Steps to Disable Extensions & Themes on Firefox

Check the lines below to learn the steps of how to disable the extensions and themes add-ons from the Firefox browser:

  1. First of all, open the Mozilla Firefox browser window on the screen.
  2. After that, click on the menu icon. The three parallel lines inside a box is the menu icon of the Firefox browser.
  3. Then, from the menu list select the Add-ons option. You can perform step 2 and 3 altogether by pressing down the Ctrl, Shift and the letter A key at a time, Ctrl+Shift+A.
  4. Next, from the left-hand side panel of the Add-ons Manager tab, click on the Extensions option.
  5. After that, to disable the extensions, you need to click on the Disable button, which is present besides to the available extensions, that you see at the right-hand side panel of the window. It is better to stop each and every extension. And then, check if the issue gets resolved or not.

If, after disabling all the extensions, the problem gets sorted, then the next step is you need to identify the problem causing add-on from the list. And that you can do by enabling the add-ons one by one, and restarting the Firefox browser. Once you identify the problem creating add-on remove that from the list. And to learn the procedure of “how to remove an add-on from the list?”, you need to click on this link.

  1. However, after disabling all the extensions, if still, the problem persists, then you need to disable all the Themes present on Firefox. To learn this process click here.

Steps to Disable Plugins Add-ons

Follow the further steps to disable Plugins from the Firefox browser.

After disabling both the extensions and themes from the Firefox browser, if you still see the Firefox keeps crashing, then you need to disable the Plugins further. To disable the Plugins from the Firefox browser the steps you need to follow are as follows:

  1. Launch the Firefox browser.
  2. Press down both the Ctrl, Shift and the letter “A key at a time, Ctrl+Shift+A.
  3. Next, from the left-hand side panel of the Add-ons Manager tab, click on Plugins. Then, at the right-hand side panel, you will see all the Plugins that are added to your Firefox browser.
  4. Now, to disable the Plugins you need to drop-down menu besides the Options button. After that, select the Never Active option from the list. It is better to set the Never Active option for all the Plugins, present on the list.
  5. Once you have stopped the Plugins, close the browser, and then restart Firefox. Hopefully, now you will find that the error gets resolved.

All these are the workarounds after the application of which you will get your Firefox up and running without the intermittent crashes. And if it still struggles to run, then contact an expert who will guide you to ward off this problem.


Five Things To Do When Firefox Slow Issue Occurs: A Complete Guide

In recent ages, Firefox is considered as one of the most popular web browsers. Most of the users use it because of its extensive features, but at times, the users find it difficult to use as they find it sluggish. 

Firefox slow is one of the common issues that is encountered by a number of users. Hence, if you are also experiencing the same, then this article is for you. Here are some reasons that are responsible for getting the same issue with Firefox. 

Most of the time this problem occurs due to a poor or unstable internet connection. Apart from that, if you are using an old version of Firebox, then it is quite possible that you can face the same issue as well. Using too much CPU or RAM can also be the reason for the issue.

Go through the solutions that are given below in the next segment. All of the methods are proven and will be helpful in order to solve this issue.

Step-by-Step Instructions to Get Rid of Firefox Slow Issue: 

Before going to the section where solutions have been described, it is recommended to check the version of Firefox that you are using. Be sure that you are using the latest version of Firefox as well. 

If you find that you are using the latest version but you face the same issue, then move to the next part and implement the solutions exactly as mentioned over there.

Solution 1: Make Firefox your Default Browser

Generally, Firefox takes a little bit of time to open as compared to other web browsers. Here are the processes to launch faster.

The very first thing you have to do is to open Firefox and navigate to the “About” and then click on the “Preferences” icon. After that, choose the General tab by clicking on it and here you can see a small box. You have to uncheck the box that says “Always check if Firefox is your default browser” and exit from the current tab.

Finally, open Firefox for once more and check if you are facing the same or not.

Solution 2: End Task from the Task Manager

If you notice uncertainty in Firefox, then you need to close the Firefox by using the Task Manager. This method is very simple and easy to execute. So let’s start:

First of all, you have to tap on the Ctrl, Shift and Esc key at the same time on your keyboard to launch the Task Manager. As an alternative method, you can also navigate to the Search Panel and then type Task Manager in the box and click on the Enter.

Now, you can notice that the Task Manager window will open on the screen and you have to choose the Processor section. Now, select the Firefox and then hit on the End Task option as well. When the entire method gets completed, check if you can successfully mitigate this issue or not.

Solution 3: Turn Off Hardware Acceleration

Due to some graphics card and graphics driver setups, sometimes the users encounter the Firefox slow issue as well. On such occasions, you have to disable the hardware acceleration and check if the solution fixes the problem or not.

  • The very first thing you need to do is to tap on the Menu button. Look at the top right corner of the screen to find the option. After that, choose Options.
  • Now, select the General panel by clicking on it and navigate to choose the Performance icon as well.
  • Under the Performance section, you need to uncheck the “Use recommended performance settings” option.
  • You can see the Additional settings on the screen.
  • From the current tab, also untick the “Use hardware acceleration when available” option.
  • Click on the Firefox menu. After that, hit on Exit button and then reopen Firefox in the way you generally do.
  • Review if the problem gets completely resolved or still persists.

Solution 4: Check the Required Access Rights

If you don’t have the right permission to your account folder, then you can face problems while you are going to open the Firefox in your device. Here is how you can easily change the settings to set the correct permissions.

  • The very first thing you have to do is to tap on the Windows and R button at the same time to launch the Run box. Now, click on it and type “%APPDATA%\Mozilla\Firefox\Profiles\” in the box and then hit the Enter button on your keyboard.
  • When the profile folders of the Firefox tab start, just right-click on the “Profiles files” option to show the list. Now, you have to choose the Properties option as well.
  • In the Profiles Properties window, select the General tab and tap on the Read-only box. After that, select the Apply option to save the changes that you just have done.
  • When you have completed all the methods, restart your computer and check if the same problem is still happening or not.

Solution 5: Change the PAC Implementation

The users have complained that the Firefox running slow issue is happening after they use the Proxy Auto Configuration. Firefox basically becomes slow when the users attempt to load multiple sites at a time. Follow the steps to get rid of this issue.

  • First, tap on the Menu button and then navigate to choose Options as well.
  • In the General panel, go down to the Network Settings section.
  • After that, select Settings by clicking on it. Now, you can notice that the “Connection Settings” dialog box will appear on the screen.

Here if you find that the “Automatic proxy configuration URL” is already selected, then it seems that you are using the PAC as well. It is suggested not to disable this setting. This helps you to prevent you from locating the Internet. At the final step, tap on Cancel and exit from the present tab.

We hope that the entire tutorial will assist you to resolve the Firefox slow to load issue at the earliest possible. But it is a suggestion for you not to skip any step or make any mistake while implementing the methods. Further, if you have any queries regarding any solution, then get in touch with a professional to resolve this issue at the earliest.


How to Fix Mozilla Firefox Warning:Unresponsive Script Error?

Mozilla Firefox is a quick and suitable web browser with the plenty of great features. However, but many times, several users reported to encountering the issue, when they open several pages at once and  receive the error message that says – “Warning: Unresponsive script”. Then, when users face such type of message, Mozilla Firefox browser can’t load the page, slow and becomes unresponsive. So, if you are one of those users, who are experiencing the same problem while working on your Mozilla Firefox, then you don’t need to panic about it! You can easily get rid of ‘Warning Unresponsive Script in Mozilla’. Here, the blog will explain you the best troubleshooting steps to fix Mozilla Firefox Warning: Unresponsive Script Error also known as Stop Script Errors on Mozilla Firefox. Follow the steps to solve the error quickly.

Steps to Fix Mozilla Firefox Warning: Unresponsive Script Error | Dial +1-888-593-4845 

Step 1:- Open Mozilla Firefox

Open “Mozilla Firefox” browser.

Step 2:- Type Command

  • Go to the address bar at the top of the window, then type “about config”.
  • Press “Enter” key.
  • Then you will see a warning message that says: “This might void your warranty”.

Step 3:- Click On the Button

  • Click on the button “I’ll be careful, I promise”.
  • Then you will see many options on the list, and you have to find the desired settings using a search box.
  • In the search box type: “dom.max_script_run_time” and press Enter.

Step 4:- Search on the Preference Name & Enter Number

  • Then, double click on the search on the preference name and the new window will open.
  • There you need to enter number 30 and press “OK” button.

Step 5:- Restart Mozilla Firefox

  • Restart Mozilla Firefox and you will not see this error in the future.
Related Blog: How To Fix Browser ERR_CONNECTION_RESET Issue?

Still, if you have any issue to follow the steps, then you should connect with Mozilla Firefox tech support team to fix the problem.

Mozilla Firefox Support

Dial Mozilla Firefox Customer Support Number To Get Immediate Help

Mozilla Firefox Support Number +1-888-593-4845 is available 24*7/365 days to your online help. You can make an instant connection with a team of well-experienced and certified Mozilla Firefox customer support experts. The technicians will give you comprehensive guidance to troubleshoot this issue in a right manner. Also, you can get the optimum, and hasty solutions to solve other kinds of Mozilla Firefox technical errors or issues. So, call now on a toll-free number to get urgent help.


How to Fix Mozilla Cannot Find Run-Time Error?

Many numbers of users reported encountering Mozilla Cannot Find Run-Time Error message when they try to start Firefox. This type of error message usually indicates some kind of damage in Firefox’s program folder.

So, when you try to open your Mozilla Firefox browser on your system and get an error message which says Runtime Error! Program: C:\Program Files (x86)\Mozilla Firefox\firefox.exe. Then don’t need to panic! This means the application has requested the Runtime to terminate it in an unusual way.

Well, there are various ways to Fix Mozilla Cannot Find Run-Time Error. Here, the blog will guide you some troubleshooting steps to fix this issue, which you have a need to follow.


Steps to Repair Mozilla Cannot Find Run-Time Error

Step 1: Performing a Clean Reinstall

You need to remove Firefox program files and then reinstall Firefox again.

  • Download a fresh installer for Firefox 40.0.2 from for a suitable location.
  • After the download finishes, close all Firefox windows.
  • Then delete the Firefox installation folder, that is located in the following locations, by default:


  • C:\Program Files\Mozilla Firefox
  • C:\Program Files (x86)\Mozilla Firefox

Mac: –

  • Delete Firefox from the Applications folder.
  • Then reinstall Firefox by double clicking on the downloaded installation file and go through the steps of the installation wizard.
  • When finished, and then select to directly open Firefox after clicking the Finish button.
  • Then your Firefox will automatically start normally.

If this step has not resolved your problem, then go to the next step.

Related Blog: How to Export Bookmarks and Password from Mozilla Firefox Easily?

Step 2:-Start Firefox in Safe Mode

  • Click the menu button and hit “Help” option.
  • Then select “Restart with Add-ons Disabled”. Then Firefox will start up with the Firefox Safe Mode dialog.
  • Now you need to choose one option from the following the two options:

Option 1:- Clicking the Start in Safe Mode button will temporarily disable your extensions and theme.

Option 2:-Clicking the Refresh Firefox button will restore Firefox to its factory default state while saving your essential information.

  • After choosing an option, you Firefox will start in Safe Mode easily.

If the “Mozilla Firefox Cannot Find Runtime” Error is still appearing, then you could connect with the technical team to get instant solutions.

Dial Mozilla Firefox Customer Support Phone Number To Urgent Help:-

Mozilla Support number

You can dial Mozilla Firefox Support Phone Number anytime from anywhere and straight away connect with the team of Mozilla Firefox customer support. The experts are certified and have a long year of experienced in solving the technical issues. They will help you in resolving to fix this Mozilla Firefox error and other kinds of Mozilla Firefox associated technical difficulties by giving finest and effectual solutions. Hence, contact now to get immediate help for Mozilla Firefox queries.


How to Export Bookmarks and Password from Mozilla Firefox Easily?

If it’s essential for you to work on a different computer and you want to Export Bookmarks and Password from Mozilla Firefox then you can easily do it. Therefore, Mozilla Firefox is the most excellent, fast, secure and safe browser. It provides the web browsing with the great feature so that the users can use various extensions & have installed, saved passwords and bookmarks, etc. Continue reading


Mozilla Firefox Technical Support Number – Call Experts Now

Mozilla Firefox Technical Support Number – Mozilla Firefox also called as Firefox is famous web browser having millions of user all over the world. It has proved to be amongst top and best internet web browser. It is available free of cost and support Window, Linux and many of android devices. It is simple to use and has various features for innovative users to alter their browsing experience Continue reading

Server Not Found Error in Mozilla browser

How to Fix Mozilla Browser Server Not Found Error

Mozilla Firefox is highly renowned browser among users after the invention of the Chrome and IE. As per as the research by our Mozilla Firefox Browser Support professionals, this browser in the past was considered as the most popular browsers among others. But in recent times, the popularity of Firefox has declined owing to discovery of bugs, slow performance of browser and its increased RAM usage. Fix Mozilla Browser Server Not Found Error is the common error which is often encountered in the Firefox. Continue reading