Here's the link for Chrome. Facebook actually runs faster and better in Chrome. You can use any or all of these browsers, and then you're not stuck if Internet Explorer does not work. You can't download them after Internet Explorer doesn't work, so do it now. You'll thank me later...:)
One more thing, these browsers don't take up a lot of space on your hard drive, so don't worry about that. You don't even have to use them, just have them in case you need another avenue to the internet.

