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How do I recover login data from another device?

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After an update of Firefox, I lost all my login data on my computer. I noticed that there is a corrupt login file (logins.json.corrupt) but it is 0 bytes, empty. I have my login data on my phone, I stopped sync so that I don't lose that. How do I recover login data from connected (android) device? I could not find if I can retrieve login file from android device or not, I believe it is only accessible through the app.

After an update of Firefox, I lost all my login data on my computer. I noticed that there is a corrupt login file (logins.json.corrupt) but it is 0 bytes, empty. I have my login data on my phone, I stopped sync so that I don't lose that. How do I recover login data from connected (android) device? I could not find if I can retrieve login file from android device or not, I believe it is only accessible through the app.
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  • Shockwave Flash 32.0 r0

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  • User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0

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FredMcD
  • Top 10 Contributor
4148 solutions 57912 answers

If you have sync, and there is a problem anywhere, Shut Down Sync Immediately On All Devices to prevent the problem from spreading. Once the problem is fixed, perform the same repair on all computers/profiles before using sync again.


The simple way: Can you Copy the password files from the cell to the computer?

logins.json and key3.db [v58+]key4.db : These are the password files. Copy Both ! to your Firefox profile, overwriting the current.

If you have sync, and there is a problem anywhere, '''Shut Down Sync Immediately On All Devices''' to prevent the problem from spreading. Once the problem is fixed, perform the same repair on all computers/profiles before using sync again. ------------ The simple way: Can you Copy the password files from the cell to the computer? '''logins.json''' and '''key3.db''' [v58+]'''key4.db''' : These are the password files. '''Copy Both ! ''' to your Firefox profile, overwriting the current.
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Question owner

Thanks for the reply. I already stopped sync. I cannot access those files in my android device, they are not accessible. Now I have no login data on my computer, and I want to recover that data from my android phone. Shall I create a new account on my android and connect it on my computer? Would that work?

Thanks for the reply. I already stopped sync. I cannot access those files in my android device, they are not accessible. Now I have no login data on my computer, and I want to recover that data from my android phone. Shall I create a new account on my android and connect it on my computer? Would that work?
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FredMcD
  • Top 10 Contributor
4148 solutions 57912 answers

This is what you are going to do. 1) Close the current sync account.

2) Using your cell, create a new account. Leave the browser open for a while so the data gets synced.

3) Once you are sure the servers have the data, have the computer log into the new sync.

4 Cross your fingers, your toes, your eyes . . . .

This is what you are going to do. 1) Close the current sync account. 2) Using your cell, create a new account. Leave the browser open for a while so the data gets synced. 3) Once you are sure the servers have the data, have the computer log into the new sync. 4 Cross your fingers, your toes, your eyes . . . .
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Question owner

I followed the steps you described and created an account on android device and then linked it to firefox on computer. The login data doesn't sync, it remains in the device but is not synced with the computer. So it's a sync problem and I don't know how to resolve this.

I followed the steps you described and created an account on android device and then linked it to firefox on computer. The login data doesn't sync, it remains in the device but is not synced with the computer. So it's a sync problem and I don't know how to resolve this.
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