Rather than having to input the server address and details every time, you can instead use the Site Manager tool to save your server connection details. Simply click on the Site Manager button on the upper left, right below "File," and from there, you can create and save sites to connect to, and save server details, the user accounts you wish to connect with, as well as password details. It's advisable to create these shortcuts for every server you frequent, allowing you quick access without having to retype login and address every time. You can quickly bring up the Site Manager through the handy CTRL+S shortcut.
Note: By default, Filezilla operates in "kiosk mode," which does not save passwords for your connections, requiring you to input your login password every time. You can allow Filezilla to save passwords through a checkbox in Edit>Settings>Interface, but doing so only saves passwords in plaintext, something that a more security conscious user may frown upon.