Please add option on Mac to start up in private mode by default. There are ways to do this on Windows by changing the command in short cut. But on Mac, there is no such thing. So, please add option to start Opera in private mode on Mac by default.
it is annoying to have to launch Opera, close the non-private window, then open a new private window. Furthermore, there is no way to open a link from external sources (e.g. an E-mail) in a private window. Firefox has option to do this for years now -- it is one of the few major reasons why I have stuck with Firefox for the longest time.
If Opera wants to boast as "safe browser for secure web surfing", being able to start in and use private browsing mode by default (i.e. without manual or optional user action) should NOT be a missing feature on Opera.