it's hard to find up to date web-browsers for old gingerbread devices like the 5treak. So you may look over to the good friends of f-droid. In the archive section you find fennec-fdroid - basically a mobile firefox without too much phoning home. They've made a version available for gingerbread: https://fdroid.org/archive/org.mozil...oid_440000.apk
It's still a firefox with lot's of the nagware you may already know from the desktop variant, so look into about:config before you use it! It's also slower than opera or naked browser, but some sites require modern html5/css klimbim and with fennec-fdroid you will be able to access them from your 5treak.