Ad keeps popping up/Right click randomly stops working

Hello all, just having some computer problems and not so good with them, nor did google help much so here I am. My computer is a hp pavilion dv6 running on windows 7 and i use mozilla firefox. randomly at times, ill be scrolling and an ad keeps popping up. i click a site and instead of the site i want this site comes up http://landingpages.lotterymaster.co/lp/buy-now/powerball?offer_id=32&aff_id=72&param=elgordoXmas5&aff_sub=5c6b548452f111e2b189062af06234f3 its really annoying and i have to switch browsers sometimes then come back to firefox??? i ran malwarebytes and everything came up good? ALSO .. at random times my laptop touch pad the right click will stop working. everything else will work fine except for the right click. to fix it i just close my laptop wait a few moments and then open it and it works. i really don’t want to keep doing this lol, any ideas as to what is wrong?!??
thank you all !
Answer #1
maybe u need to install some adblock extension or just switch to a more clean browser like chrome and install AdBlock extension
Answer #2
Just install adblock plus addon in firefox and all ads are gone cheers
Answer #3
In addition to adblock plus here are other add-ons i highly recommend: – BetterPrivacy (Remove or manage a new and uncommon kind of cookies)
– Ghostery (blocks 3rd party tracking bug / ads)
– HTTPS-Everywhere (Encrypts all communications with websites)
– TrackMeNot (randomized search-queries from google et, so they cannot track you)
Answer #4
Cheers have downloaded. Anything about the right click???
Answer #5
have you read here http://answers.yahoo.com/question/index?qid=20110707160011AAkFFqC
Answer #6
Yes I did thanks but mine works, just every now and then it stops..