- Mozilla Firefox is a great browser with millions of users worldwide.
- Unfortunately, Firefox errors can sometimes appear, but you should be able to fix most of them.
- Want to learn more about Firefox? Be sure to check our Firefox Hub, for more in-depth guides.
- If you're interested in other web browsers, check them all out on our dedicated Browsers section.
6. Clear your cache
- Click the Menu button in the top right corner. Choose Library > History > Clear Recent History.
- When Clear All History window opens, set Time range to clear to Everything. Expand the details section and check everything like on our screenshot. Now click Clear Now button.
After doing that, the history should be cleared and the problem will be resolved.
7. Refresh Firefox
- Open Firefox.
- In the address bar enter about:support and click Refresh Firefox button.
- Now follow the instructions on the screen to refresh Firefox.
After you’re done, the Firefox should be restored to default and the problem will be permanently resolved.
8. Remove your Firefox profile
- Close Firefox.
- Now press Windows Key + R and enter firefox.exe -p. Press Enter or click OK.
- List of available profiles will appear. Select your user profile, it should probably be labeled as default and click the Delete Profile button.
- Now pick the desired option. If you want to completely remove your profile, click the Delete File button.
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:
- Click the Create Profile button.
- Click Next.
- Enter the desired name for your profile and click the Finish button.
After creating a new user profile, the issue should be completely resolved. Keep in mind that this method will remove your history, bookmarks and saved passwords, so be sure to back them up beforehand.
9. Consider using Beta or Nightly version
If the Firefox issues are still present, you might be able to solve them simply by switching to the Beta or the Nightly version of Firefox. To do that, you just need to remove Firefox from your PC and then install the Beta version.
The Beta version has the latest updates, but since this version isn’t fully tested, some new issues might appear.
On the other hand, the Nightly version offers the latest updates, as soon as they are implemented, but since these updates aren’t fully tested, it’s possible that some issues might occur.
Firefox issues on Windows 10 can cause many problems, and in most cases, these problems are caused by a third-party application or a Firefox extension.
In order to fix Firefox issues, you just have to disable or uninstall the problematic app/extension.
Frequently Asked Questions
To remove malware from Firefox, press Ctrl + Shift + A to open the extensions page. From there, remove all suspicious extensions that you don’t recognize or remember installing.
Yes, Firefox has a Phishing and Malware protection feature that will provide you basic protection against malicious websites.
To reset Firefox, click the Menu icon and choose Help > Troubleshooting Information. Now click on the Refresh Firefox button and follow the instructions on the screen.