As you know Oracle Solaris 11 (11.1, 11.2) comes with Firefox 17 ESR and Mozilla 17 ESR, which is very good news. I have had no problems with this version until now when I upgrade our Oracle Database 12c to 12.1.0.2 and found out that I could no longer access the Enterprise Manager Database Express via the browser since you require Firefox 24+.
Thankfully someone has compiled there our later version and placed them in mozilla contrib locations http://download.cdn.mozilla.net/pub/mozilla.org/firefox/releases.