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My Browser deleted itself and left a folder of old files on my desktop, WHY?

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  • Last reply by FredMcD

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My Firefox Browser deleted itself somehow and microsoft edge took over as the default browser. I clicked on the browser in my task bar and a grey error box came up and said the short cut needed to be removed because foxfire.exe was not found. Then on my desktop I had a new folder called "Old Firefox Data".

I had a issue yesterday where I downloaded 2 Viruses (in a zipped folder) off the firefox secure transfer app because I thought it was a contract for work. My virus scan software removed the 2 trojan viruses and corrected the unauthorized changes to my computer.

How did the entire Firefox.exe disappear? Do I still have a problem? Thanks in advance!

All Replies (3)

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First, let's make sure your system is clean.

You may have ad/mal-ware. Further information can be found in this article;

Run most or all of the listed malware scanners. Each works differently.
If one program misses something, another may pick it up.

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When there is a problem, one of the things the browser might do it a profile refresh or reset.

Refreshing Firefox {web link} is a LAST RESORT ! !

Refreshing Firefox -- easily fix most problems

If you're having problems with Firefox, refreshing it can help. The refresh feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks and open tabs. Everything else, like user settings and add-ons, are removed.
Note: Refresh saves your old profile to the desktop in a folder called Old Firefox.

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