opera 40 request for key repository opening

[mandeb01]

mandeb01 last edited by

After starting, opera 40 send a dlg box requesting the opening of the key repository of linux Mint 18 because this repository is protected by a password.
This appears after opera's update from 39 to 40.
What does it mean, is it normal ?, secure or risky ? what should I answer ?
Until now I canceled the dlg with no apparent further trouble. The dlg reappears after each restart of opera.

rem : I used to work in a standard user (no root auth) session protected with a password at each opening.

thanks
YB