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Firefox Not Working on Windows 10: 8 Fixes if It Won’t Open

All the solutions in this article were researched & tested by our experts

6 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Firefox is known as one of the best browsers for the Windows platform, but unfortunately, it seems that Windows 10 users are having certain issues with it, and now Firefox is not working for them.

Many issues can occur, including slowdowns, crashes, and more, and these problems can affect your daily browsing activities.

However, there are several ways to fix them, and in today’s article, we’ll show you a couple of methods you can apply right away.

Why is Firefox suddenly not working?

There could be various reasons why Firefox suddenly stopped working. Some possible reasons include the following:

What are some common Firefox issues?

Firefox issues can be problematic and prevent you from using your browser. As for issues, we’ve compiled a list of common problems that users reported with Firefox:

Quick Tip:

Problematic add-ons and too many cached internet files might be inconvenient, but they are not hard to resolve. We understand your primary browser is down for maintenance, but it should not stop you.

Switching to a backup browser like Opera One can be beneficial because you can import everything from Firefox with a single click. Opera One’s speed dial and bookmarks are great and also visually appealing.

Opera One

What can I do if Firefox is not working on Windows 10?

1. Disable problematic add-ons

According to some users, FlashGet was the add-on that caused the crash; remember that almost any add-on can cause Firefox to crash, so you might have to disable or remove specific add-ons to fix this issue.

2. Start Firefox in Safe Mode

After doing that, Firefox should start in Safe Mode. If the issue doesn’t appear in Safe Mode, one of your extensions or settings may be causing this issue.

This is a valuable technique when Firefox is not working on Windows 10 or when Firefox is not opening on Windows 10.

3. Check your antivirus

You might want to disable this or other similar features using a different antivirus solution. If that doesn’t work, your next step would be to disable or uninstall it completely.

After that,check our best antivirus software guideto find reliable protection software that won’t cause any issues.

4. Reinstall Firefox

You should try this solution if Firefox is still not working after a Windows 10 update or if Firefox keeps crashing on Windows 10.

Also, users have said a reinstallation is effective if Firefox is not loading pages after an update.

5. Clear your cache

6. Refresh Firefox

After you’re done, Firefox should be restored to default, and the problem will be permanently resolved.

A simple refresh is sometimes all you need when Firefox is not working properly on Windows 10.

7. Recreate your profile

After doing that, your profile should be removed, and a new one will be created once you start Firefox. You can also create a new profile from this dialog box. To do so, follow these steps:

After creating a new user profile, the issue should be resolved entirely. Remember that this method will remove your history, bookmarks, and saved passwords, so be sure to back them up beforehand.

8. Consider using Beta or Nightly version

Firefox issues on Windows can be troublesome, and in most cases, these problems are caused by a third-party application or a Firefox extension.

In case you’re still having issues, we encourage you to visit ourFirefox is not responding in Windows 10 and 11 guidefor more solutions.

Also, note that for most issues on the browser, you may start by attempting a diagnosis using the Firefox troubleshooting mode.

Do you know a different tip to solve this problem? If so, share it with us in the comments section below.

Firefox Not Working on Windows 10: 8 Fixes if It Won’t Open#

Why is Firefox suddenly not working?#

What are some common Firefox issues?#

Opera One#

What can I do if Firefox is not working on Windows 10?#

1. Disable problematic add-ons#

2. Start Firefox in Safe Mode#

3. Check your antivirus#

4. Reinstall Firefox#

5. Clear your cache#

6. Refresh Firefox#

7. Recreate your profile#

8. Consider using Beta or Nightly version#