If you want to conserve battery life you can turn on power saving mode, turn off Bluetooth, turn off location settings, use wifi if you can, turn off cellular data if it's a bad connection or you don't need it, turn the brightness as low as you can stand it, and turn off some built in apps that are running that you don't use
In regards to having two browsers, I wouldn't worry about that
Posted via Android Central App with my Samsung Galaxy S5