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How do I move my old firefox date profile which is saved on my desktop into a new firefox profile?

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Can someone please call me for support/help? or online chat?

Can someone please call me for support/help? or online chat?

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Sorry, we aren't set up to provide support by phone and don't have online chat.

https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems Scroll all the way to the bottom.

Note: Your old Firefox profile will be placed on your desktop in a folder named "Old Firefox Data." If the reset didn't fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don't need this folder any longer, you should delete it as it contains sensitive information.
Which contains this hyperlink.

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile#w_copying-files-between-profile-folders

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This did not solve the problem.