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I get the error message in Firefox 5 "Sync encountered an error while syncing: Unknown error. Sync will automatically retry this action."

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Hello Firefox support. I just started working on a 64 bit Windows 7 machine running Firefox 5 and am constantly getting the following Sync error: "Sync encountered an error while syncing: Unknown error. Sync will automatically retry this action." I can't find an accurate solution on the web. Please help!

Hello Firefox support. I just started working on a 64 bit Windows 7 machine running Firefox 5 and am constantly getting the following Sync error: "Sync encountered an error while syncing: Unknown error. Sync will automatically retry this action." I can't find an accurate solution on the web. Please help!

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Exact same error message here here. Haven't checked our other systems. This one is:

  • Firefox 5
  • Canonical 1
  • Ubuntu Linux 10.04 LTS