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I uninstalled my firefox cause I edited something I shouldn't have why is it all my extension and bookmark didn't disappear?

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I uninstalled my firefox cause I edited something I shouldn't have why is it all my extension and bookmark didn't disappear?. If those didn't reset to zero then did the files I edited in firefox didn't disappear?.

I uninstalled my firefox cause I edited something I shouldn't have why is it all my extension and bookmark didn't disappear?. If those didn't reset to zero then did the files I edited in firefox didn't disappear?.

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There are two folders for Firefox. The main Firefox programs are kept in a folder with other programs in C:\Programs. There is another folder in the user directory that stores the user profiles. If something were to happen to the main program, the profiles should be save.

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What kind of change(s) did you make?

Firefox stores your personal data in the Firefox profile folder and that data is not affected by an uninstall and reinstall.