Uninstall Firefox: How to Completely Remove Firefox

Sometimes, you may not be able to completely remove all the files and trails of a software when you uninstall it from your computer or mobile device. In this tutorial, I will show you how to completely remove Firefox.

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Mozilla Firefox is a free, open-source web browser that is used widely by Internet users, on Windows, Mac, Linux and Android devices. Though it is a very nice browser with many handy features, there may be times that you need to uninstall it because you no longer want to use it or you are having issues with some of its extensions, or maybe you need to do a fresh installation.

If you want to remove Firefox only because of some problematic extensions that you are having difficulty getting rid of, you can also choose to remove Firefox plugins completely, without needing to uninstall Firefox itself. This may help you solve the issues you are having and allow you to continue using your browser.

Before You Uninstall Firefox

Before you start the uninstallation process, there are a couple of things you should pay attention to.

Firstly, make sure that you made a backup of your bookmarks, if you have any valuable bookmarks that you wouldn't want to miss because an uninstallation of Firefox will also remove all your bookmarks. Even though I consider myself to be highly careful about this sort of things, there have been a couple of incidents where I lost my bookmarks due to forgetting to make a backup copy of them before an uninstallation. Hence, it is desirable to make a habit of always checking your bookmarks before uninstalling a web browser.

TIP: You can easily backup your bookmarks in any web browser, by simply exporting them from the bookmark manager, which will generate an HTML file that you can then use to import your bookmarks to any other web browser.

Secondly, make sure that you don't have any important items in your browsing history. Sometimes there may be web pages that you forgot to bookmark but may need to check again later. Check your Firefox History thoroughly and save any links that you might need.

Finally, if you have installed certain extensions that store information, files or images etc. you may want to make sure you check the extensions and any files they created or stored in detail, so that you will not lose anything of importance during the uninstallation.

After doing the above checks and backups, if you are certain that you want to uninstall Firefox, you can do that easily by following the steps below.

How to Uninstall Firefox

When you are ready to uninstall Firefox web browser, follow these simple steps:

STEP 1: Close all programs/applications.

This may not always be necessary, but it is still a good idea to close all programs before you start uninstalling a program, especially a web browser.

STEP 2: Open the Control Panel (on Windows).

STEP 3: Click Programs (or Programs and Features) link to open the panel where you can uninstall and modify programs that are installed on your computer.

STEP 4: Find Mozilla Firefox from the Programs list. It will have a version info attached to it, e.g. Mozilla Firefox 44.0.2 (x86 en-US). Yours will probably be different as browsers are updated frequently.

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STEP 5: Click on it to start the uninstallation.

This will open Mozilla Firefox Uninstall Wizard which will guide you through the uninstallation process.

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TIP: You can also start the Firefox Uninstall Wizard by going to the uninstall folder in the Firefox installation folder in your Program Files (or where it is located) and clicking helper.exe file.

Note that, when you click Next, the wizard will warn you to close any Firefox windows if they are still open. Following the steps the wizard will require from you will uninstall Firefox.

Make Sure You Completely Remove Firefox

Once the installation is complete, although it is not required, you can restart your computer and then check the Program Files folder to see if there is anything left from the Firefox installation. If you still see the Mozilla Firefox folder, delete it.

Secondly, go to the Local and Roaming folders in your appdata folder to clear any trails of Firefox. You can find the Local and Roaming folders by typing the following lines (separately) in the address bar of a folder window assuming your Windows installation is located in the C directory:


Remember to insert your user name which is the name that is used while logging in to Windows. Within that two folders, if you see a Mozilla Firefox folder, delete them.

You can further clear Firefox trails by going into the registry settings but that's a more advanced topic we may talk about in another post.

I tried to explain how to completely remove Firefox from your computer and I hope that you found this tutorial to be helpful, if you did please share it.

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