It’s pretty easy - use either Internet Explorer, Firefox or Chrome browsers.
According to the Sophos security blog, FREAK “...only works if you end up with a TLS connection secured with an export grade RSA key.
As far as we know, the trick doesn't work against the TLS implementations used by Microsoft, Google and Mozilla.
So users of Internet Explorer, Chromium/Chrome and Firefox are OK.
Browsers that use OpenSSL are at risk, which includes Android's now-disowned "Browser" browser, and therefore probably Samsung's derived browser known as "Internet."
Likewise, Apple's own implementation of TLS, called Secure Transport, puts OS X software that uses it at risk, including Safari.