We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

downloaded win 10 from win 8 and lost contacts

  • 1 reply
  • 1 has this problem
  • 5 views
  • Last reply by christ1

more options

when windows 10 loaded I lost all my contacts

when windows 10 loaded I lost all my contacts

All Replies (1)

more options

Did you create a backup of your Thunderbird profile folder prior to updating to Win10? If not, why?