For version 9.1.0 and above, complete the following.
1. Open Foxit application.
2. Go to File > Preferences or hold down Ctrl + K to open the Preferences window.
3. Locate Accessibility Tab, under "Override Page Display", check Always use Page Layout Style and Always use Zoom Setting then make the change at your desire.
For version prior to version 9.1.0, complete the following.
Start up Foxit application without opening any file.
Go to File > Preferences or hold down Ctrl + K to open the Preferences window.
Locate History tab, uncheck the option Restore last view settings when reopening.
Locate Page Display tab, set the Default Page Layout, Zoom and other settings you want.
Click on OK to apply the change.
Restart Foxit application.
If above solution does not work for some particular files, please read the related topic Why can't Reader remember the Page Layout Settings in Preferences, which explains everything.