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How do I delete all data on sync and start over?

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When I get my bookmarks the way I want them on my computer and delete the ones I do not want it gets messed up. I have 4 computers on my account and every time I sync it brings up old book marks. I have deleted all book marks from my computer and set up a new sync account then deleted all book marks on my other computers. Then I set up the new sync account on all the computers and still brings up Book marks. There should not be any book marks because I deleted all book marks from all computers before I set up the new account. I have done this 2 times and it they come back. How can I clear all my accounts and start over???????????

When I get my bookmarks the way I want them on my computer and delete the ones I do not want it gets messed up. I have 4 computers on my account and every time I sync it brings up old book marks. I have deleted all book marks from my computer and set up a new sync account then deleted all book marks on my other computers. Then I set up the new sync account on all the computers and still brings up Book marks. There should not be any book marks because I deleted all book marks from all computers before I set up the new account. I have done this 2 times and it they come back. How can I clear all my accounts and start over???????????

Chosen solution

To delete all of the data associated with your Firefox sync account:

  1. Go to Firefox Accounts
  2. Login using the information associated with your sync account
  3. Delete your account
  4. Signup for a new sync account using the Firefox Accounts website or directly from Firefox

Warning: This cannot be undone and will result in the loss of your sync data

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Chosen Solution

To delete all of the data associated with your Firefox sync account:

  1. Go to Firefox Accounts
  2. Login using the information associated with your sync account
  3. Delete your account
  4. Signup for a new sync account using the Firefox Accounts website or directly from Firefox

Warning: This cannot be undone and will result in the loss of your sync data