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I want to unintall Firefox to delete old account on computer, and reinstall with fresh clean start.

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I have tried: unintalling and downloading/reinstalling, and logging out/in with a new account, it wants to sync with an account that's no longer mine.

I have tried: unintalling and downloading/reinstalling, and logging out/in with a new account, it wants to sync with an account that's no longer mine.

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ps. if it helps make it more clear, I want to un-sync from an old account on my computer, to restart with a fresh slate of bookmarks etc. without syncing/deleting data from the old account. Thanks!

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First, shut down sync.

What account do you want to remove? You may not have to remove Firefox.

Remove History For One Site Open the History Manager <Control><Shift> H. In the search bar, enter the name of the site. Right click on one of the listings and select Forget About This Site. This should remove all information, including any passwords / settings.

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