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Migrate from damaged OS hard disk to new OS without sync

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  • 1 has this problem
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  • Last reply by jscher2000

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My laptop died damaging the registry on my WIN 10 installation, the HD and files are intact, bought a new laptop and want to migrate my old firefox installation (unsynced) I copied over the folder from the roaming folder as per the old way and opening firefox says I should sync the new version,and it has created a new profile folder, obviously I can't sync. Will renaming the old profile the same as the new one work or do I have to down the route of installing an older version of Firefox to migrate successfully?

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It works best to keep the original profile folder name to enable extensions to link up with their stored data.

What exactly did you copy to where? For example:

  • C:\Users\username\AppData\Roaming\Mozilla\Firefox => entire old Firefox folder to here
  • C:\Users\username\AppData\Roaming\Mozilla\Firefox\Profiles => entire old Profiles folder to here
  • something else

You may notice in

C:\Users\username\AppData\Roaming\Mozilla\Firefox

that there are two important files:

  • installs.ini
  • profiles.ini

These files determine the default profile folder and what appears on the about:profiles page.

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