Open the Ubuntu Software Center by clicking on the Ubuntu logo icon in the top left corner of the screen and searching for "Software Center".
In the Software Center, search for "FileZilla" in the search bar located in the top right corner of the window.
Click on the FileZilla icon in the search results.
On the FileZilla page, click the "Install" button.
Enter your password when prompted.
Wait for the installation process to complete.
Once installed, you can find FileZilla in your applications menu. Click on the grid icon in the lower left corner of your screen, then search for "FileZilla" and click on the FileZilla icon to launch the program.
You have successfully installed FileZilla on Ubuntu.