Mozilla Firefox Vs Google Chrome | Which is the world's best browser ?

Mozilla Firefox Vs Google Chrome.Both these browsers are outstanding and are demanded at present in the market.I am sure that there was a higher competition between these two.According to TipsnTricks4All , there was a lot of difference , while both the browsers has drawbacks , but i use the browsers based on the situation , as firefox consumes more memory , i use firefox when my RAM space is less occupied by other programs , if my RAM space is filled more by other programs , then i use Google Chrome both were best , sometimes this and some times that , everything depends upon the situation.