Just go to mozilla.org and click on the free download box on the top right. It'll take you a whole two minutes to get up and running.
-Hal
1. The OP already said hes using Firefox and from the information given you would have no way to infer he needs to upgrade or that an upgrade would solve his problem. Which it wouldn't.
2. Saying he does not need any addons does not answer the OP's original question. Adblock+ is almost a no brainer when you install Firefox. It blocks pop up ads more effectively than anything Firefox has built in and should be the first addon installed with Firefox in my opinion.
3. If you have nothing but smartass remarks and it does not help answer the question then why not just stay silent on the matter. "Geeze, what the heck are you using for a browser?" offers absolutely zero value to the topic.