@tallboy - no, it does not make any difference. Put it this way - anything that you can access (not only in savefile, but in mounted partitions, external flash drive if connected, etc) - can be accessed by the browser too (and by extension, by an attacker if the browser is compromised) --- if you use the browser with the same account you login with (root or non-root - doesn't matter).
Best is still to use network programs with account that don't share anything else with your main account; unless you specifically allow it to.
Of course, amigo will then come that *anything* that uses Xorg is doomed anyway
![Laughing :lol:](./images/smilies/icon_lol.gif)
![Smile :)](./images/smilies/icon_smile.gif)
If you're really paranoid, in Fatdog you can buy a little more security, you can run the browser under sandbox, under LXC-sandbox, under UML-sandbox, under qemu, under VirtualBox, the list goes on and on. Barry's latest toy (Easy Linux) also have container built-in (similar to sandbox/lxc-sandbox concept).