This article describes how to uninstall the Firefox application for supported operating systems. If you are planning to uninstall and reinstall Firefox to fix problems you may be having, you should first read Troubleshoot and diagnose Firefox problems.
Table of Contents
Uninstall Firefox
To uninstall Firefox, follow these steps:
- Close Firefox (if Firefox is open): Click the Firefox menu and select .Click the Firefox menu at the top of the screen and select .Click the Firefox menu and select .
- Open the Applications folder in Finder.
- Drag the Firefox application to the Trash.
Your uninstall of Firefox is finished.
- If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux for details.
- If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory to uninstall Firefox.
- Close Firefox (if it is opened): Click the Firefox menu and select .Click the Firefox menu at the top of the screen and select .Click the Firefox menu and select .
- Click the Windows
button and select . - In the Control Panel window click on Add or Remove Programs. The Add or Remove Programs window will open.
- Select Mozilla Firefox from the list of currently installed programs.
- To begin the uninstall, click the If the Uninstall Wizard does not run, you can start it manually by running helper.exe, which is located by default in C:\Program Files\Mozilla Firefox\uninstall\helper.exe. button to the right of Mozilla Firefox. The Mozilla Firefox Uninstall Wizard window will open.
- In the Mozilla Firefox Uninstall Wizard window click .
- Click .
- Click .
- To remove other files and folders that may not be removed by the uninstall, you must manually delete the Firefox installation folder, which is located by default in C:\Program Files\Mozilla Firefox.
Start the Mozilla Firefox uninstall
To begin the process of uninstalling Firefox, follow these steps:
- Close Firefox (if it is opened): Click the Firefox menu and select .Click the Firefox menu at the top of the screen and select .Click the Firefox menu and select .
- Click the Windows Start button or press the key.
- In the Start Menu select
. - In the Control Panel window click the Uninstall a program link under the Programs section.
- Select Mozilla Firefox from the list of currently installed programs.
- To begin the uninstall, click the If the Mozilla Firefox Uninstall window does not open, you can start it manually by running helper.exe, which is normally found in one of these locations by default:
C:\Program Files\Mozilla Firefox\uninstall\helper.exe
C:\Program Files (x86)\Mozilla Firefox\uninstall\helper.exe button at the top of the list. The Mozilla Firefox Uninstall window will open.
- Close Firefox (if it is opened): Click the Firefox menu and select .Click the Firefox menu at the top of the screen and select .Click the Firefox menu and select .
- On the Start Screen click the Desktop tile. The Desktop view will open.
- On the Desktop hover in the lower right-hand corner to access the Charms.
- Select
- The Control Panel window will open.
from the charm.
- The Control Panel window will open.
- In the Control Panel window click the Uninstall a program link under the Programs section.
- Select Mozilla Firefox from the list of currently installed programs.
- To begin the uninstall, click the If the Mozilla Firefox Uninstall window does not open, you can start it manually by running helper.exe, which is normally found in one of these locations by default:
C:\Program Files\Mozilla Firefox\uninstall\helper.exe
C:\Program Files (x86)\Mozilla Firefox\uninstall\helper.exe button at the top of the list. The Mozilla Firefox Uninstall window will open.
- Close Firefox (if it is opened): Click the Firefox menu and select .Click the Firefox menu at the top of the screen and select .Click the Firefox menu and select .
- Click the Windows Start button or press the key.
- In the Start menu select .
- In the Settings window select to open the list.
- Select Mozilla Firefox from the list of currently installed programs.
- To begin the uninstall, click If the Mozilla Firefox Uninstall window does not open, you can start it manually by running helper.exe, which is normally found in one of these locations by default:
C:\Program Files\Mozilla Firefox\uninstall\helper.exe
C:\Program Files (x86)\Mozilla Firefox\uninstall\helper.exe . The Mozilla Firefox Uninstall window will open.
- Close Firefox (if it is opened): Click the Firefox menu and select .Click the Firefox menu at the top of the screen and select .Click the Firefox menu and select .
- Click the Windows Start button or press the key.
- In the Start menu select .
- In the Settings window select
and then . - Select Mozilla Firefox from the list of currently installed programs.
- To begin the uninstall, click the three vertical dots and then click If the Mozilla Firefox Uninstall window does not open, you can start it manually by running helper.exe, which is normally found in one of these locations by default:
C:\Program Files\Mozilla Firefox\uninstall\helper.exe
C:\Program Files (x86)\Mozilla Firefox\uninstall\helper.exe in the drop-down menu. The Mozilla Firefox Uninstall window will open.
Complete the Mozilla Firefox uninstall
To finish uninstalling Firefox, follow these steps:
- Click
in the Mozilla Firefox Uninstall window. The next window that opens will show the location of the Firefox program that will be uninstalled. - Click .
- Click to complete the uninstall.
- To remove other files and folders that may not be removed by the uninstall, you must manually delete the Firefox program folder from the location shown in the Uninstall Mozilla Firefox window (usually C:\Program Files\Mozilla Firefox or C:\Program Files (x86)\Mozilla Firefox).
Remove user data and settings
Uninstalling Firefox does not remove any user data such as bookmarks, history, passwords and cookies (unless you are using snap on Ubuntu). If you also want to remove this information, you should delete the Firefox folder containing your user profile:
- Click the Finder icon in the dock.
- In the menu bar click the option or Alt key and select . A window will open containing your Library folder. menu, hold down the
- Open the Application Support folder.
- Delete the Firefox folder.
- (Ubuntu) Click the menu on the top right of the screen and select . A File Browser window will open.
- Click the menu and select if it isn't already checked.
- Open the folder marked .mozilla.
- Delete the folder marked firefox.
- Click the Windows
- Alternatively, you can press +R to open a Run dialog.
button and select . A Run dialog will open.
- Type in %APPDATA%\Mozilla\ and click . A window will open containing the Firefox folder.
- Delete the Firefox folder.
- On the Start Screen click the Desktop tile. The Desktop view will open.
- On the Desktop hover in the lower right-hand corner to access the Charms.
- Select the charm. The Search sidebar will open.
- Type %APPDATA%\Mozilla\ in the search field and press Enter. A window will open containing the Firefox folder.
- Delete the Firefox folder.
- Click the Start button or press the key.
- Type %APPDATA%\Mozilla\ in the search field and press Enter. A window will open containing the Firefox folder.
- Delete the Firefox folder.
Based on information from Uninstalling Firefox (mozillaZine KB)