Ge'ez script allows you to see what a language like the Amharic or the Tigrinya language look like. Chances are that many people who have the font on their system can also read a language that uses the script.
For those people who do not have a font for this script on their computer, the Amharic Wikipedia now supports the AbyssinicaSIL font. For the people who do not know this, Amharic is spoken in Ethiopia.
When you use the current Firefox, you will get an experience like the one below. We already know that a next version of Chrome will properly support it. I do not know about the other browsers. What I do know is that Firefox is doing a sterling job for me.