Annoying adds popping up in Firefox?

[Jerry Tiberlake]

in my opinion, just check at firefox extension or add-on that installed tried uninstall some feature that seem like ads or you can also check on control panel - installed program and remove some browser toolbar from the ads like ask, etc. hope this help you
Thanks

[DunbarPappy®ϟϟ]

There are clever programmers in the ad industry and they have multiple avenues to get around simple blocking add-on's.
You must modify beyond those, for both security & privacy, plus the annoying ads which may be 'weaponized'.
See my suggestions here: http://ca.answers.yahoo.com/question/ind...202AA4cljP
(Chrome here: http://ca.answers.yahoo.com/question/ind...409AAZGnI6
Note that 'safe browsing' only relates to things saved on the local machine; like cookies, history, passwords, and so on: it has no relationship to incoming ads, or other assets from websites or "3rd party" items. Those behave independently, and follow whatever settings & mods you've made to the browser.

You may want to clean up your PC with "MalwareBytes".
http://www.malwarebytes.org/
(free version has no "real-time" shield)