Firefox is a popular open-source web browser from the Mozilla Foundation. Most users choose Firefox as the main web browser due to the developer’s concern for user’s data privacy. Despite the pros of Firefox, you may want to uninstall the browser or you just need to reinstall Firefox. In this article, we will explain how to uninstall Firefox on Mac completely and safely.


1. How to uninstall Firefox manually
2. How to uninstall Firefox with App Cleaner & Uninstaller
4. How to reset Mozilla Firefox

Uninstall Firefox manually

If you drag and drop Firefox to the Trash or simply delete it from Applications, specific supportive (service) files still remain on your hard drive. Usually, most of them hide in caches, logs, plugins, containers, and reports. That’s why it is important to remove Firefox from Mac correctly.

Follow these steps to completely uninstall Mozilla Firefox:

  1. Clear Recent History and Caches. For this, go to the Menu bar → History → select Clear Recent History
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  3. Select Everything for the Time range to clear and select all checkboxes. Click Clear Now.
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  5. Open Finder → go to the Applications folder → remove Firefox from there.
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    Now you need to find and remove other service files of Firefox. They are stored in the hidden Library folder

  7. Open Finder, press Command+Shift+G and type ~/Library. Click Go.
  8. Go to the Caches and find and remove all the folders related to Mozilla Firefox:
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  10. Then empty Trash to completely uninstall Mozilla Firefox.

How to uninstall Firefox with App Cleaner & Uninstaller

If you want to fully delete Firefox with just a few clicks, use App Cleaner & Uninstaller.
App Cleaner & Uninstaller is a special utility that automatically finds all service files of apps and uninstalls any app completely and safely.

Here is how to delete Firefox with App Cleaner & Uninstaller:

  1. Launch App Cleaner & Uninstaller.
  2. Select Firefox in the Mac applications list.
  3. Click the Remove button.
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  5. Confirm removal.
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If you prefer to delete Firefox in a regular way, you can then find all service files of the browser with App Cleaner & Uninstaller. Just switch to the Remaining Files tab. Here you will see all the leftovers and service files of apps previously removed to Trash.
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How to reset Mozilla Firefox

With the help of App Cleaner & Uninstaller, you can also reset Firefox.

  1. Launch App Cleaner & Uninstaller.
  2. Select all service files of Mozilla Firefox. Make sure that the executable file is not selected.
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  4. Click on Remove and confirm the removal.


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