my opinion on each browser -
i.e- most of the trojans ,malware and pop ups i got were using it .
firefox - looked like the solution turned out to be half way house relying on add ons to heavily and still allowed the odd trojan attack .
opera - had it got rid of it got it back and followed instructions on setting it up properly
since using have only had 2 trojans neither from browsing very secure fast and feature packed although most are hidden or work in the backround .
chrome - its google gear , its a heavy load compared to the others and lacks many features that make the split second faster speed not worth having .
safari - a browser that does what it says on the tin very good but fonts werent good imho .
my choice
1- opera , its fast ,secure ,feature packed and requires no addons .
2- safari its light fast and un cluttered .
3 firefox- needs to lose weight get an overhaul of features but its good.
4chrome- if you must you must but consider i.e instead lol .