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Bookmarks and password History

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hi.. I have done new windows 10 in my laptop . prior to that I synchronized my all data with firefox account now when i signed in again i have lost access to all my bookmarks and history and all other data.please help me.

hi.. I have done new windows 10 in my laptop . prior to that I synchronized my all data with firefox account now when i signed in again i have lost access to all my bookmarks and history and all other data.please help me.

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Hi

Thank you for your question about the Firefox Sync service.

It appears from your question, that you are using Firefox Sync as a back up service. This is not what Sync is designed to do. The Firefox Sync service takes a copy of the data you wish to include and transfers it to a second device (typically a mobile device such as a tablet or a telephone) running a copy of Firefox. The storage in between all attached devices is both temporary and fragile and is not stable enough to be (and is not designed as) a reliable backup service.

If you have a copy of your Firefox profile for desktop Firefox, you may be able to recover your bookmarks and other data. Please have a read of this article.

If you have a copy of your data on a mobile version of Firefox, please follow these instructions to connect it to Firefox Sync to copy your data.

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You can check if you have a C:\Windows.old folder with your previous personal data.

Firefox uses two locations for the Firefox profile folder (AppData\Roaming and AppData\Local), so make sure to look in the correct location. Location used for the main profile that keeps your personal data (Root Directory on about:profiles).