Dann zeige
dpkg -l |grep opera
gorilla@gorilla-Aspire-5750G:~$ dpkg -l |grep opera ii eject 2.36-3ubuntu1 amd64 ejects CDs and operates CD-Changers under Linux ii gpg 2.2.20-1ubuntu1 amd64 GNU Privacy Guard -- minimalist public key operations ii libboost-filesystem1.71.0:amd64 1.71.0-6ubuntu9 amd64 filesystem operations (portable paths, iteration over directories, etc) in C++ ii libfuture-perl 0.45-1 all module for operations awaiting completion rc opera-stable 73.0.3856.344 amd64 Fast, secure, easy-to-use web browser ii python3-macaroonbakery 1.3.1-1 all Higher-level macaroon operations for Python 3 gorilla@gorilla-Aspire-5750G:~$
Alles ok?