Method 1: Via PPA
Step 1: Add the official PPAsudo add-apt-repository ppa:wireshark-dev/stableStep 2: update the repository
sudo apt-get updateStep 3: Install Wireshark 2.4.2
sudo apt-get install wiresharkDuring the installation, it will require confirming security about allowing non-superuser to execute Wireshark.
Just confirm YES if you want to. If you check on NO, you must run Wireshark with sudo. Later, if you want to change this,
sudo dpkg-reconfigure wireshark-common