[danso]

The barrier isn't just on the user side. The initial phase of government sites – i.e. web sites where the vast majority of the public are required to use to do official things — were designed with Internet Explorer in mind exclusively. Now many gov sites officially support Chrome as the default, and sometimes mobile Safari. Right now Firefox is at 2.7% [0] of us.gov visitors, almost half that of Microsoft Edge.

The average user, especially those in business/professional settings, are going to keep Chrome as their default for a long time, even if FF becomes equivalent or even superior.

[0] https://analytics.usa.gov/