Tanath on µBlock for Firefox - An efficient ad-blocker that is "easy on CPU and memory". Potential Ad-Block Rival? - http://www.reddit.com/r...
"PSA: Avoid using old software, especially if it involves the internet. The single most important thing you can do in terms of computer security is keep everything up to date. If developers fix bugs and you don't update it doesn't help you." - Tanath