Download the Linux .zip file from our downloads page: https://me-download.wickr.com/#/version/me
Decompress (extract) the .zip file to your local machine.
You may already have a program installed that will install .deb files, but if not, please install Gdebi from the software center or run the following command in terminal:
sudo apt-get install gdebi
Once you have Gdebi installed, run the following commands changing the version numbers to match the files you currently have in a terminal:
sudo gdebi wickr-qt5.9.1amd64.deb
sudo gdebi WickrMe_4.16.07-02_amd64.deb
Run the WickrMe.desktop file.