hello I have the following questions I used Firefox browser on my laptop for 4 years, but later updated my hard drive due to insufficient memory. But before, the account did not enable the password synchronization function, and it was found that the password saved in the browser on the old hard drive was not synchronized back. At present, I can still log in to my old hard drive through websites and search methods. I have tried copying all the folders on my old hard drive to my new computer, but it is currently not working. At present, I have saved the key4 file and logins. json, which are the original system passwords, but I don't know how to import them into the new system. So please advise on how to solve my problem. thank