I'm developing a site that should work for Portuguese and English - preferably automatically. For PHP I already got HTTP-ACCEPT-LANGUAGE, and now I have to start testing the code that will direct the content according to the language the browser informed.
For testing, I use Safari that (apparently) can not change the header in the language part. Nor does Firefox Developer Edition have two add-ons: Quick Accept-Language Switcher and Quick Locale Switcher. Both of them I tested in my localhost but php always takes the same header (with the pt code) regardless of the language I select or the code I enter (in the case of Quick Accept-Language).
I need one of these two browsers pretend to be gringo! Any suggestions?