Recommended Free Tools
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Windows 11 removes the Firefox application without deleting your bookmarks, history, saved passwords, cookies, extensions, or profile settings. That is useful if you plan to reinstall Firefox, but it is not a complete removal.
To remove Firefox completely, uninstall the application first, then remove its remaining installation folder and Firefox profile data separately. Do not delete the profile unless you are certain you no longer need the stored browser data.
Before uninstalling Firefox
Close every Firefox window before starting. In Firefox, click the menu button, then choose Exit. If Firefox is still running, Windows may leave files behind or the uninstaller may fail to start.
Also decide whether you need to keep your Firefox data. Uninstalling the browser itself does not remove:
#1 Best Overall
- KEYBOARD: The keyboard works for Windows with hot keys that enable easy access to Media, My Computer, Mute, Volume up/down, and Calculator
- EASY SETUP: Experience simple installation with the USB wired connection
- VERSATILE COMPATIBILITY: This keyboard is designed to work with multiple Windows versions, including Vista, 7, 8, 10 offering broad compatibility across devices.
- SLEEK DESIGN: The elegant black color of the wired keyboard complements your tech and decor, adding a stylish and cohesive look to any setup without sacrificing function.
- FULL-SIZED CONVENIENCE: The standard QWERTY layout of this keyboard set offers a familiar typing experience, ideal for both professional tasks and personal use.
- Bookmarks
- Browsing history
- Saved passwords
- Cookies
- Extensions
- Profile settings and preferences
If you may reinstall Firefox later, leave the profile folder in place. If you want Firefox removed along with its local profiles, follow the profile-removal section after uninstalling the application.
Method 1: Uninstall Firefox from Windows 11 Settings
- Open Start and select Settings. You can also press
Win+I. - In Settings, select Apps.
- Click Installed apps.
- Find Mozilla Firefox. You can type Firefox in the search box to locate it faster.
- Click the three-dot button beside Mozilla Firefox and choose Uninstall.
- When the Mozilla Firefox Uninstall window opens, click Next.
- Click Uninstall.
- Click Finish when the wizard completes.
This removes the Firefox program. It does not remove the Windows Firefox profile containing personal data.
Alternative: Use Control Panel
The older Control Panel interface remains available in Windows 11 and can be useful if Firefox does not appear correctly in Settings.
PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minute- Open Start, type
Control Panel, and open it. - Select Uninstall a program under Programs.
- Select Mozilla Firefox in the list.
- Click Uninstall.
- In the Mozilla Firefox Uninstall window, click Next, then Uninstall, and finally Finish.
If Firefox is missing from Installed apps
If Mozilla Firefox is not listed, or clicking Uninstall does not open the Mozilla wizard, run Firefox’s uninstaller directly.
Using the Run dialog
- Press
Win+R. - Try this command first:
C:Program FilesMozilla Firefoxuninstallhelper.exe - If that path does not exist, try:
C:Program Files (x86)Mozilla Firefoxuninstallhelper.exe - Press
Enter. - When the uninstall window appears, click Next, Uninstall, and Finish.
You can run either command from the File Explorer address bar, Command Prompt, or PowerShell as well. The correct location is the one that exists on your computer; do not assume that the 32-bit path is correct simply because Windows is 64-bit.
Rank #2
- Reliable Plug and Play: The USB receiver provides a reliable wireless connection up to 33 ft (1), so you can forget about drop-outs and delays and you can take it wherever you use your computer
- Type in Comfort: The design of this keyboard creates a comfortable typing experience thanks to the low-profile, quiet keys and standard layout with full-size F-keys, number pad, and arrow keys
- Durable and Resilient: This full-size wireless keyboard features a spill-resistant design (2), durable keys and sturdy tilt legs with adjustable height
- Long Battery Life: MK270 combo features a 36-month keyboard and 12-month mouse battery life (3), along with on/off switches allowing you to go months without the hassle of changing batteries
- Easy to Use: This wireless keyboard and mouse combo features 8 multimedia hotkeys for instant access to the Internet, email, play/pause, and volume so you can easily check out your favorite sites
Check the installation folder
The uninstaller displays the installation directory it is removing. Common locations are:
| Typical installation | Folder |
|---|---|
| Standard Program Files installation | C:Program FilesMozilla Firefox |
| 32-bit installation on 64-bit Windows | C:Program Files (x86)Mozilla Firefox |
A per-user installation is an edge case. It may use this uninstaller instead:
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
%LOCALAPPDATA%Mozilla Firefoxuninstallhelper.exeThis path is reported for per-user deployments rather than being Mozilla’s standard general-purpose uninstall path. Windows may request administrator approval while removing such an installation.
Remove leftover Firefox program files
After the uninstall wizard finishes, check the installation folder shown by the wizard. If that folder still exists and you are sure it belongs to the Firefox installation you just removed, delete it manually.
- Open File Explorer.
- Go to the installation directory, such as
C:Program FilesMozilla Firefox. - Right-click the Mozilla Firefox folder and select Delete.
- Approve the administrator prompt if Windows displays one.
If Windows says a file is in use, restart the computer and try again. Make sure Firefox is not still running in Task Manager before deleting the folder.
Rank #3
- All-day Comfort: The design of this standard keyboard creates a comfortable typing experience thanks to the deep-profile keys and full-size standard layout with F-keys and number pad
- Easy to Set-up and Use: Set-up couldn't be easier, you simply plug in this corded keyboard via USB on your desktop or laptop and start using right away without any software installation
- Compatibility: This full-size keyboard is compatible with Windows 7, 8, 10 or later, plus it's a reliable and durable partner for your desk at home, or at work
- Spill-proof: This durable keyboard features a spill-resistant design (1), anti-fade keys and sturdy tilt legs with adjustable height, meaning this keyboard is built to last
- Plastic parts in K120 include 51% certified post-consumer recycled plastic*
Remove Firefox profiles and personal data
Firefox profiles are stored separately from the browser’s program files. A computer can also contain more than one profile. Therefore, deleting the Mozilla Firefox folder under Program Files does not remove the profile data.
The straightforward Mozilla-documented method removes the Firefox profile folder under your Windows roaming application data:
- Press
Win+R. - Enter:
%APPDATA%Mozilla - Click OK.
- In the folder that opens, right-click the Firefox folder.
- Select Delete.
Deleting this folder removes the Firefox profiles stored there, including data such as bookmarks, settings, and saved passwords. This action is not reversible unless you have a backup or Firefox Sync copy.
Remove a specific Firefox profile with Profile Manager
If you have multiple profiles and want to remove only one, use Firefox Profile Manager instead of deleting the entire Firefox folder. This is useful when one profile must be preserved for a later reinstall or another Windows user.
- Reinstall or open Firefox Profile Manager while Firefox is closed.
- In the profile list, select the profile you want to remove.
- Choose the option to remove or delete that profile.
- Review the choices carefully:
| Choice | Result |
|---|---|
| Don’t Delete Files | Removes the profile from Profile Manager but keeps its files on the computer. |
| Delete Files | Removes the profile and its files, including bookmarks, settings, and passwords. This cannot be undone. |
| Cancel | Stops the operation without deleting the profile. |
For a complete removal, choose Delete Files only after confirming that you no longer need the profile.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsRank #4
- 【Dreamy Rainbow Gaming Keyboard】K521 Gaming Keyboard Adopts a Different LED Backlight Design, Upgraded on the Traditional LED Backlight Effect, Making the Light More Penetrating, Giving You a More Dazzling Visual Effect, Making Your Gaming Process More Enjoyable
- 【One Touch Opens & Visual Feast】The K521 Red Dragon Keyboard has a One-Touch on/off Lighting Button for Added Convenience. It also has a Three-Position Adjustable Breathing Mode and a Four-Position Adjustable Brightness Lighting Mode
- 【Mechanical Feeling & Fast Tapping】The PC Keyboard Keys are Designed for Mechanical Feeling, Giving You a Better Feel During Use and the Ability to Trigger Keys Quickly, Allowing You to Win All Your Games
- 【19 Keys Anti-Ghosting Keyboard】Anti-Ghosting Ensures Every Button Can Be Triggered. This Allows You to Trigger Key Combinations In The Game Accurately, And Each Skill Can Be Accurately Released to Increase Your Winning Rate. Redragon K521 Will Be Your Perfect Partner
- 【12 Multimedia Combination Keys】The K521 Wired Gaming Keyboard is Equipped with 12 Multimedia Keys That Can Greatly Enhance Your Gaming/Office Efficiency and Make It More Convenient to Use
What not to expect from the Firefox uninstaller
Some older guides tell you to select a checkbox named Remove my Firefox personal data and customizations. That instruction is outdated for current Firefox on Windows. The modern Mozilla uninstaller handles application removal separately from profile-data removal and does not present that personal-data checkbox.
Do not use a third-party uninstaller just to find this option. Mozilla warns that third-party uninstall tools can delete Firefox profile contents, including extensions, cache, cookies, bookmarks, settings, and saved passwords. Windows Settings, the Firefox uninstaller, and deliberate profile-folder cleanup are sufficient.
Verify that Firefox has been removed
- Open Settings → Apps → Installed apps and search for Mozilla Firefox.
- Confirm that the Firefox installation folder shown earlier no longer exists, unless you intentionally retained it.
- If you chose to delete personal data, press
Win+R, open%APPDATA%Mozilla, and confirm that the Firefox folder is gone. - Restart Windows if an installation-folder deletion was blocked while Firefox was running.
If Firefox still appears in the Installed apps list after its files are gone, use the direct uninstaller path or the Control Panel entry. A stale Windows entry does not necessarily mean that the browser program is still installed.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.FAQ
Does uninstalling Firefox delete bookmarks and saved passwords?
No. Removing the Firefox application leaves user data such as bookmarks, history, saved passwords, cookies, extensions, and profile settings on the computer.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →How do I completely remove Firefox from Windows 11?
Uninstall Mozilla Firefox from Settings, remove any remaining Mozilla Firefox installation folder, then delete %APPDATA%MozillaFirefox if you also want to remove the stored Firefox profiles and personal data.
Best Value
- All-day Comfort: This USB keyboard creates a comfortable and familiar typing experience thanks to the deep-profile keys and standard full-size layout with all F-keys, number pad and arrow keys
- Built to Last: The spill-proof (2) design and durable print characters keep you on track for years to come despite any on-the-job mishaps; it’s a reliable partner for your desk at home, or at work
- Long-lasting Battery Life: A 24-month battery life (4) means you can go for 2 years without the hassle of changing batteries of your wireless full-size keyboard
- Simply plug the USB receiver into a USB port on your desktop, laptop or netbook computer and start using the keyboard right away without any software installation
- Simply Wireless: Forget about drop-outs and delays thanks to a strong, reliable wireless connection with up to 33 ft range (5); K270 is compatible with Windows 7, 8, 10 or later
What if Mozilla Firefox is not listed in Installed apps?
Run C:Program FilesMozilla Firefoxuninstallhelper.exe or C:Program Files (x86)Mozilla Firefoxuninstallhelper.exe. A per-user installation may instead use %LOCALAPPDATA%Mozilla Firefoxuninstallhelper.exe.
Is there a Firefox uninstaller option to remove personal data?
Not in the current Windows Firefox uninstaller. Application removal and profile-data removal are separate operations. Delete the Firefox profile folder only if you no longer need its data.
Can I remove only one Firefox profile?
Yes. Firefox Profile Manager lets you select an individual profile. Don’t Delete Files removes it from the manager while retaining its files; Delete Files permanently removes the profile data.
The Bottom Line
For a normal Windows 11 removal, use Settings → Apps → Installed apps → Mozilla Firefox → three dots → Uninstall, then complete the Firefox wizard with Next → Uninstall → Finish. For a complete cleanup, separately delete any leftover installation folder and the Firefox profile data under %APPDATA%MozillaFirefox. Keep that profile folder if you may need your bookmarks, passwords, or settings later.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
