Google Chrome Browser, and related open source Chromium,
is based on WebKit engine that Apple first used in Safari.
Google is now "forking" this base to new project "Blink"
in an effort to simplify the codebase
(removing 4.5 million lines of code!)
Firefox creator Mozilla has announced that it's working with Samsung on Servo,
a new rendering engine which is written in a programming language called Rust
Firefox is trying to stay relevant,
Samsung keeping options open (to reduce dependence on Google)
and Google looking for more freedom "to innovate".
Competition is good.