Do Firefox and Safari internet servers work in the U.S on an Apple Mac purchased...

[parpgirlsuperhero]

...in the UK? And, who are the best (but, also value for money) wireless broadband providers in the U.S?

 

[ek5]

Firefox and Safari will work on an Apple purchased anywhere.

There aren't any "best" wireless broadband providers in the US, they are all the same.