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Trying to load sync on a reloaded system, I get this error: "Bad configuration, unable to determine your firefox account server configuration. please try again.

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  • Last reply by cor-el

deanbrown
deanbrown
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I was running Windows 8, I.T. did a complete reload of my machine(Dell Latitude ES440) and installed Windows 10. I had my old system SYNCed, but when I try to log in to my account, I get this error: "Bad configuration, unable to determine your firefox account server configuration. please try again." I have tried restarting Firefox, rebooting my machine, and even starting firefox in safe mode to no avail.

I was running Windows 8, I.T. did a complete reload of my machine(Dell Latitude ES440) and installed Windows 10. I had my old system SYNCed, but when I try to log in to my account, I get this error: "Bad configuration, unable to determine your firefox account server configuration. please try again." I have tried restarting Firefox, rebooting my machine, and even starting firefox in safe mode to no avail.

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cor-el
cor-el
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In case of issues with Sync you can try this:

Disconnect from Sync and Reconnect to Sync again. You can disconnect from Sync by clicking the e-mail address in the "3-bar" Firefox menu button drop-down list or go to "Options/Preferences > Sync".

Delete the signedInUser.json file in the Firefox profile folder and delete the Weave folder (Sync was formerly named Weave).

Remove an existing chrome://FirefoxAccounts entry in the Firefox Password Manager. If that isn't enough then delete the prefs.js files to reset all prefs and maybe also delete the compatibility.ini file to reinitialize the profile.

Delete and re-create the Firefox account or change the Sync password. Note that changing the Sync password will wipe all data stored on the Sync server.

Can you log in to the Sync account via this page?

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.