Help with logging into facebook?

[TBJS Fan 333]

So recently I haven't been able to access my Facebook account through Mozilla Firefox. Every time I go to log in I'll type my name and password then when I hit Log in, it sends me to a Facebook checkpoint in which it says "It looks like you downloaded software that is affecting your Facebook account and showing you unauthorized ads. It's common for people to be tricked into running programs that offer features that aren't available on Facebook, such as adding custom themes or seeing who has viewed your profile." I have noticed many more ads then usual so I thought maybe if I download the Ad blocker for Mozilla Firefox then it will all go away and I'll be back to usual. Though it worked on ads on sites like youtube, when I try to Log in to facebook it still does the same thing. I can get on Facebook through other browsers like Internet Explorer but honestly I like Mozilla Firefox a lot better. So if you can help I would greatly appreciate it. Thanks in advance!

[Optimus_X]

I have a crazy trick for this one. I had the same problem but with opera. I opened mobile Facebook on my PC. In the URL bar type http://WWW.facebook.com.