Best Fix For Firefox Keeps Crashing Issue

Last Updated: 2022-03-01
Summary: Mozilla Firefox is one of the best and most popular web browsers that can be used in Windows 10/8/7. However, there may be have been some problems with Mozilla Firefox, in this post, do not worry, you will have the best solution from this post. 
If you are a Firefox user, you may have encountered such a situation: when Firefox starts, it can be opened for a second and then closed immediately. Sometimes Firefox would open for a few minutes but eventually crash. Do not be panic, you are not the only one who faces this problem, many users report that Firefox keeps crashing on startups. If you also have this crash problem, take one minute to read the below content to get to know the solutions to fix this problem. 

Firefox Keeps Crashing Windows 10 Fixed

Solution 1: Check if your Firefox client is up to date

We all know that some software produces bugs that cause strange behavior. A new update from the vendor can fix these bugs. So if your Firefox crashes frequently, you can check if it’s the latest version. If not, please update this web browser. Just follow the below steps to fix it.

Step 1: In Firefox, click the three-line menu, then click Help.

Step 2: Select About Firefox to see if it is up to date. If it is, you can see a message. If not, you can choose to update your browser.

Solution 2: Check if you can start Firefox in Safe Mode

You should also check if this web browser can be launched in Firefox startup mode, which temporarily disables hardware acceleration among other settings and turns off installed extensions that may prevent Firefox from starting.

Solution 3: Restart with add-ons disabled

If Firefox keeps crashing, the reason behind it might be a broken extension. To fix this, you can restart in safe mode with add-ons disabled. In Firefox, go to its menu, navigate to Help > Restart after disabling add-ons, and click Restart.

Method 4: Uninstall and reinstall Firefox

Firefox sometimes crashes even in Safe Mode, so you can perform a clean install of Firefox on your Windows 10 computer.

Step 1: Go to Control Panel > Uninstall a Program to uninstall Firefox from your PC.

uninstall Firefox in Control Panel

Step 2: In File Explorer, go to C:\Program Files\Mozilla Firefox or C:\Program Files (x86)\Mozilla Firefox to delete the installation folder.

Step 3: Go to Mozilla’s official website to download the .exe file.

Step 4: Double-click the file and follow the on-screen wizard to complete the installation process.

Solution 5: Clear the Firefox cache

The caching of websites on the system helps reduce load times. But mismatches in cache calculations can cause cache misses and cause many problems. Also, Firefox keeps crashing in Windows 10 if the cache is corrupted.

To fix this, you can delete the cache.

Step 1: Click the menu and select Library > History > Clear Recent History.

Step 2: Set the scope to Everything and select all checkboxes. Then, click Clear Now.

Additionally, you can clear the Firefox cache in File Explorer.

Step 1: Press Win + R, enter C:\Users\User_Name\AppData\Local, and click OK. User_Name should be replaced with your name.

Step 2: Find the Mozilla folder and go to Firefox > Profiles.

Step 3: Open the folder ending with .default-release and delete these four folders – cache2, jumpListCache, OfflineCache, startupCache.

Solution 6: Check for faulty software and scan for viruses

Some programs are known to cause Firefox to crash. Also, some viruses or malware can cause Firefox to crash. In this case, you should do two things.

Check the release notes to see if there are any known issues with your version of Firefox.
Scan your computer for viruses and malware with an antivirus tool.


Next time you encounter a problem with Firefox Keeps Crashing issue, do not worry, just follow the above mention solutions to solve this issue. Hope the solution above helps you really.

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