Chrome Version       : 0.8.43
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Safari:
    Firefox:
       Edge:

What steps will reproduce the problem?
(1) Restart linux machine (raspberry pi), update ssh, everything
(2) Try to SSH with Secure Shell Chrome extension 
(3)

What is the expected result?

To secure shell in or be able to easily clear `known_hosts` file


What happens instead?
get error message (see below) and cannot change.

Please provide any additional information below. Attach a screenshot if
possible.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:KIFEfst6zz2nU/UMUZNDSh0tO9xoukpiGYX8ef8BK9U.
Please contact your system administrator.
Add correct host key in /.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /.ssh/known_hosts:1
ECDSA host key for 192.168.0.121 has changed and you have requested strict checking.
Host key verification failed.
NaCl plugin exited with status code 255.