You should remember to delete all Firefox files, because only uninstalling Firefox cannot solve the issue. Therefore, the best way to fix Firefox will not open error is to reinstall the browser. However, considering that we don’t receive any error message, it is very hard to check the exact file that causes the error. For the damaged files, the common solution is to utilize a faulty-free copy to replace them. You may be also interested in this: Windows 10 Notifications Tell Firefox Users to Use Edge Solution 1: Reinstall FirefoxĪs corrupted/damaged files are mainly responsible for Firefox won’t open Windows 10 error, you should consider reinstalling Firefox. In this case, you can remove add-ons to fix the issue.

However, these add-ons may result in Firefox to misbehave as well especially when they aren’t coded well and have bugs within them.

Add-ons: Firefox allows users to install attached components that can offer other features for your browser.

As it known to all of us, the latest Logitech webcam often gives rise to issues to Mozilla Firefox.

Drivers:Sometimes, drivers will interfere with other applications and can cause Firefox certain web page won’t open issues or something like that.

To avoid you lose something important, you’d better make a full system backup in advance. In this case, you can delete all the content in the system and reinstall Firefox to fix Firefox won’t open Windows 10. Files can get corrupted or damaged by themselves and nothing you can do about it.

Corrupted Files:Though it is not 100% sure, all the signs point towards corrupted files.

You may raise a question “why not Firefox open”. Many Mozilla Firefox users complain that Firefox will not open even they double click the icon and run the browser as administrator.

Possible Causes of Firefox Won’t Open Error

Solution 2: Remove Logitech Cam Drivers.

Possible Causes of Firefox Won’t Open Error.

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