Hi yom,

it fixed by refreshing Firefox in the Troubleshooting Information section of the help menu

hello yom_sa,

The problem is solved, though. It seems that it was a professional network issue. I finally managed to connect to sync with a new Firefox profile stored locally in D:

Another way

1. Click Sync Now.

• Click the Firefox Account icon in the toolbar.
• Click Turn on Sync.
• Fill out the form to create an account. Take note of the email address and password you used. ...
• Firefox Accounts will send you a confirmation email. ...
• Click the Firefox Account icon to expand the menu.
• Click Sync Now.

for more information visit given link:

[https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer]

I hope resolve your problem then reply me back .

Thank you!

Hello...

I think it is fixed by refreshing Firefox in the Troubleshooting Information section of the help menu.

thank you

Thanks for all of the replies. I finally managed to get it fixed by refreshing Firefox in the Troubleshooting Information section of the help menu.