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Lost passwords after updating Firefox

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I downloaded the recommended update by Firefox for our browser. Apparently, I inadvertently did not carry the passwords over in the application or something. I am so upset with myself because I no longer have any passwords. I chose Firefox many years ago for the convenience of having our many passwords securely and readily available. Now I have nothing! All our financial and medical accounts have passwords and I can no longer get them. PLEASE HELP

Chosen solution

hii

  please follow the instruction step by step to get password 
  * Open the Firefox web browser.
   * Load about:support.
   * Click on the "open folder" link near the top of the page that opens; this opens the profile folder.
   * Close Firefox.
   * Check if you see a file called logins.json.corrupt.
   * If you do, rename the file to logins.json to fix it.
  * Start Firefox. The passwords should be available again.
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Chosen Solution

hii

  please follow the instruction step by step to get password 
  * Open the Firefox web browser.
   * Load about:support.
   * Click on the "open folder" link near the top of the page that opens; this opens the profile folder.
   * Close Firefox.
   * Check if you see a file called logins.json.corrupt.
   * If you do, rename the file to logins.json to fix it.
  * Start Firefox. The passwords should be available again.

Helpful?

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Thank you so much! I'm now trying to organize my bookmarks and I am able to do this. What do I need to do in order to make changes. I have been getting prompts to log in to Firefox. I don't even know what my Firefox sign-in is? How do I find it? How can I edit (delete or add) websites to my pages?

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most welcome

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