[err4nt]

Mozilla's userbase isn't really that significant, <5% is like ~2/50 people, where Chrome for example is 2/3 of all people using the internet by comparison: https://caniuse.com/usage-table

[r3bl]

Those stats are from StatCounter. Literally the second sentence in their FAQ:

> Our tracking code is installed on more than 2 million sites globally.

Having a low number there is a feature.

[asadotzler]

Mozilla has about 300 million users across desktop and mobile. I'll let you decide if that's significant or not.