What is wrong with the spam on my computer???!? It's out of control!!! Please help!!?

[Holey Mufflers]

your computer is likely infected to the point a reply with solutions here won't help. since you have some of the needed software to deal with most infections.

i suggest you go to Bleepingcomputer.com, sign up, and post your issues in the aproraite forum. and read "am i infected".
this will likely take some back and forth, in depth solutions that cannot be completed to it's needed conclusion in this format.
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FYI,
an alternative browser is not a solution to your issues. merely a work around if that. if you do any online financial transactions, paying bills, or logon to see a bank balance, your financial secureity maybe at risk. an altinative browser is an ignorant way to deal with that possible scenario.
FYI,
Caution,
if you do any online finacial transactions, first thing you should do is contact them and change all security info, passwords and such. call them via the phone. DO NOT use your computer!!!!!!!!!!!