Mostly Firefox, but sometimes I run Internet Exploder. Dumped Chrome.
I highly encourage you to give AdBlock Plus a try. Once you've used it for a bit, using any machine without it will flat-out annoy you.
https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/
For IE, do the following: Open up Desktop IE, click the gear (Tools) icon, Internet Options. In the Internet Options dialog, click the Programs tab, Manage Add-ons, Click on Tracking Protection, then click on Get a Tracking Protection List Online.
When that page opens, click on "Add" for the top 2- EasyList Standard, and EasyPrivacy.
They are now installed, and doing what AdBlock does in other browsers. It's dumb but you actually have to close the dialog box and re-open it to see the tracking lists now in your window.