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Home Firefox

How to Remove Mozilla Firefox Completely from PC

Mayur Agarwal by Mayur Agarwal
August 6, 2016
in Firefox, Tips 'n' Tricks

If you’re experiencing strange issues in any version of Firefox, doing a complete uninstall and cleanout as covered below is also recommended to resolve this.

Here are the steps to be followed to remove Firefox completely:

  1. Backup your bookmarks. In Firefox 2 go to the Bookmarks menu, select ‘Organize Bookmarks’, then select File>Export. In Firefox 3, select ‘Organize Bookmarks’, then ‘Import and Backup’>Export HTML.
  2. Then Remove Firefox from Add/Remove Programs(Windows XP) or Programs & Features(Windows Vista). During uninstallation, tick the ‘Remove my Firefox personal data and customizations’ box.
  3. Delete the folder \Program Files\Mozilla Firefox (This is the place where Firefox is installed, and on most of the PC’s it is installed in the path C:\Program Files\Mozilla Firefox)
  4. Delete the following directories if they exist:
    In Windows XP –
    \Documents and Settings\[username]\Application Data\Mozilla
    \Documents and Settings\[Username]\Local Settings\Application Data\Mozilla
    In Windows Vista –
    \Users\[username]\AppData\Local\Mozilla
    \Users\[username]\AppData\Roaming\Mozilla\
    Note: This will delete all of your bookmarks and saved settings, so make sure you’ve backed up them. Also note down any passwords which you might otherwise forget.
    5. The final step is to remove all registry entries of Firefox. Using the Windows Registry Editor (Start>Run>Regedit), delete the following keys – ie. right click on their name in the left pane of Registry Editor and select Delete:
  •       [HKEY_CLASSES_ROOT\FirefoxHTML]
  •       [HKEY_CURRENT_USER\Software\Mozilla]
  •       [HKEY_CURRENT_USER\Software\MozillaPlugins]
  •       [HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla]
  •       [HKEY_LOCAL_MACHINE\SOFTWARE\MozillaPlugins]
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Mayur Agarwal

Mayur Agarwal

Mayur Agarwal is the founder and editor-in-chief of WebTrickz. As a Technology enthusiast and an Internet addict, he loves sharing useful How To’s and Tips & Tricks.

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Comments 8

  1. salman says:
    14 years ago

    it worked for me

    Reply
  2. Pingback: How to Uninstall/Remove Opera completely
  3. Trulylatino says:
    13 years ago

    4 me too. Thanks for the info, it’s very useful.

    Reply
  4. helmi skype says:
    12 years ago

    how to delete mozila firefox permanently and download google chrome latest
    thanz 4 info

    Reply
  5. aruhadi says:
    12 years ago

    thaks. keep posting bro

    Reply
  6. Martins says:
    11 years ago

    I want delecte completeliy mozillafiox from my comoputer

    Reply
  7. Patrick says:
    7 years ago

    [HKEY_CLASSES_ROOT\\FirefoxHTML]

    Worked like a charm, however, the HKey listed above wasn\’t anywhere to be found and i can only assume it was deleted during the removal of firefox from the add/delete software tab

    Reply
  8. patricia says:
    7 years ago

    Ever since I installed Windows 10 firefox has been shutting down, stalling and crashing and I don;t know why. What can I do and does it have something to do with Windows 10?

    Reply

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