Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I found that I still have Firefox 48 (x86) installed along with ver 61 (64-bit) - is it OK to uninstall the old one?

  • 2 replies
  • 1 has this problem
  • 2 views
  • Last reply by cor-el

more options

OS = Windows 7 Pro, 64 bit. I discovered that Firefox 48 (x86) remains installed long after the 64 bit upgrade. However, the only directory containing firefox.exe is Program Files (x86) which seems to contain old and new Firefox files. I nervously anticipate that havoc may occur if I uninstall the old one. Maybe I should just back up my bookmarks and go for a new clean install...?

OS = Windows 7 Pro, 64 bit. I discovered that Firefox 48 (x86) remains installed long after the 64 bit upgrade. However, the only directory containing firefox.exe is Program Files (x86) which seems to contain old and new Firefox files. I nervously anticipate that havoc may occur if I uninstall the old one. Maybe I should just back up my bookmarks and go for a new clean install...?

All Replies (2)

more options

Hi, no it is not until you do this :

Copy your Profile folder out also and delete after uninstall. :

Now : uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) & C:\ProgramData Then restart system.

Reinstall with Current Release Firefox 61.0.1 with a Full Version Installer from :

Please let us know if this solved your issue or if need further assistance.

more options

Do you see this specific Firefox version listed in "Windows Control Panel -> Programs" with the correct installation directory so you can uninstall it and cleanup the registry?

Otherwise you can simply remove the Firefox installation folder.


Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data when you uninstall or reinstall Firefox, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.