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Two versions of Firefox on my hard drive

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I'm trying to free up some space on my hard drive and noticed I have 2 versions of Firefox installed. Versions 57.0 and 73.0.1. How can I delete the older version without uninstalling FF completely? Thanks in advance

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If 2 Firefox installations show in the Windows Control Panel > Programs and Features it could be for two reasons.

1. being that there is both a x86 (32-bit) version and a 64-bit version that is or was once installed.
I would search my hard disc to see if 2 - firefox.exe files are found, and if so exactly in which folders before un-installing Firefox, to be safe.

2. That the Registry key for Firefox wasn't cleaned up after a Firefox newer version was installed; common with Windows before Windows10 came into being.

And if you un-installed Firefox now, you might discover as many other users have that there was really one version of Firefox installed and you would lose that one version. But, not a big deal because merely un-installing Firefox doesn't remove the Firefox user Profiles and data that the user has saved. A new, fresh installation should "pickup" the Profiles and all their data without even a "hiccup".

Downside, is that if your disc is "that low", you would be better off with a new, larger disc drive. The "user Profile and its files" take up far more disc space than the Firefox installation files use. Could be close to a 10 to 1 ratio, and that was like maybe 5 years ago when I looked into doing a comparison ....

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