Digital Clock Settings
*under Clock Format:
%A %h.%d.%Y / %I:%M %p
Which translates to:
Thursday Feb.27.2020 / 01:23 pm
From <https://lb.raspberrypi.org/forums/viewtopic.php?t=29369>

How to deactivate monitor sleep in Raspbery Pi
Terminal:
Sudo nano /etc/lightdm/lightdm.conf
Add below line in to [Seat*] section.
[Seat*] 
xserver-command=X -s 0 -dpms
**Press [Ctrl]+[6]+o then choose M-A to Append changes

http://chamaras.blogspot.com/2013/03/how-to-deactivate-monitor-sleep-in.html

Install Firefox on Raspberry Pi
Terminal:
sudo apt-get update
sudo apt -get install firefox-esr