This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

I re-installed the browser and encountered a very big problem

  • 2 replies
  • 1 has this problem
  • 2 views
  • Last reply by FredMcD

more options

Hello FireFox Team ,

I re-installed the browser and encountered a very big problem

History + password + bockmark ( All Data )

The browser has deleted the same connection and I want to recover all the data

This problem may prevent me from using Firefox

Waiting for your response

Hello FireFox Team , I re-installed the browser and encountered a very big problem History + password + bockmark ( All Data ) The browser has deleted the same connection and I want to recover all the data This problem may prevent me from using Firefox Waiting for your response

All Replies (2)

more options

Look on your desktop. Do you see a folder called; Old Firefox? Look inside. Look for the folder with the latest creation date.

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

more options

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

http://kb.mozillazine.org/Profile_folder_-_Firefox#Navigating_to_the_profile_folder

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles


Type about:profiles<enter> in the address bar. How many profiles are listed? How many should be there? Also, open the profile folder in your file explorer.