With apologies to all of the Firefox fans, I’d recommend Google Chrome.
I hate Google, but Chrome works with most sites, and it is updatable. I had the same issue with Vista at home, and many sites required IE10 or higher to function properly.
They all worked on Chrome.
I use Palemoon. Works very well - haven’t found any site problems.
I don’t and won’t use Google anything.
XP user bump