If you are running XP (32 bit at that!) then your choice of browser is the least of your security issues.
In any case you must be at least airgapping it (right?), so I guess it's academic.
Edit: you might be onto something here. Running an old, outdated browser on an old, unpatched 32 bit windows xp box might trigger some anti analysis defenses on whatever malware is sure to come your way. Security through being too obviously insecure!
But I know three families in low-income situations for whom that sort of PC is the only one they have, because they got it from either an office or a school when the place was discarding computers. So no, it's not being air gapped. It's the computer the kids look up homework info on, it's the one the parents use to search for jobs, and more. They can't afford to upgrade, and they're afraid that even upgrading the software would make the whole thing come apart at the seams.
