Help Phone resets while using stock internet browser?

[stealthtt24]

So i've noticed that my phone will reset quite often, and its annoying the shit out of me. Sometimes it will reset when the phone is with me in the sun when im driving. It gets a little hot so I understand and I put it in the shade and its fine.

Now its been resetting when I am browsing the internet, stock browser. This is really bothering me and im getting sick of it. I'd say about 25% of the time. This and one other issue is bothering me. Anyone help? Thanks!