World best browser known for its extension,stability,fastness.It is the world most powerfull in terms of feature.
Having a decent score in every test like Acid test (93/100) and others.
Some notable points of Firefox in my test:
Feature and stability : 10/10
fastness : 9/10( very good on slow internet)
Virus proof : 8/10
look and feel : 7/10
Market Share : 6/10
OS support : 10/10(only 32bit and 64 bit windows,Mac,Linux)
Total : 50/60
Editor Advice: Just use it,it comes in every size and shape with tons of feature.Lots of tech blog showed
it as a slow browser but they havenot test on slow internet connection.If you have a very fast net connection
then it might be some variation in result(in milli second) but that can be negociable.