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FireFTP error message 421

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New Contributor

FireFTP error message 421

FireFTP was working great until I changed my Yahoo password. Now when I try to connect, I get error message 421: "Sorry, cleartext sessions are not accepted on this server.Please reconnect using SSL/TLS security mechanisms."

I changed my password in this login through the FireFTP account manager, and have tried manually entering it several times. I even uninstalled FireFTP and reinstalled, creating a new account with the new password, but I still get the error message.

Could this be a problem with Yahoo, my web host? I'm stumped! Thanks for any help you can provide!!

5 REPLIES
Site Moderator

Re: FireFTP error message 421

Hello!

Thank you for inquiring about your issue on Mozilla Support! We appreciate your patience while we find an answer to your issue. At this moment I am escalating this to our advanced troubleshooting team who will assist you further in 24-48 hours.

Thank You!

Best Regards,

feer56

Site Moderator

Re: FireFTP error message 421

FireFTP is a third-party Firefox add-on that is not developed by Mozilla. Visit their helpsite, http://fireftp.net/help.html to see if this is a known issue.

You could also contact Yahoo to see if others are reporting the error.

Sorry I couldn't be more help.

Site Moderator

Re: FireFTP error message 421

Looks that FireFTP tries to connect via a normal http or ftp instead of via a secure https or ftps connection to the server.

You will have to check the settings that FireFTP uses to connect in this case.

Legendary Contributor

Re: FireFTP error message 421

To use SFTP for a connection in FireFTP, select that connection from the drop-down list, click Edit, then on the Connection tab, change the drop-down from None to SFTP. The port should now say 22 (if not, change it to 22).

Legendary Contributor

Re: FireFTP error message 421

Oops, sorry, Yahoo wants FTP over SSL, not SSH. You should try one of the other 3 options in the connection/security drop-down starting from "best" and working your way down.

More info: