NoScript can be downloaded here - http://noscript.net/ - this is an AddOn for Firefox, meaning that it can not be installed with IE, Safari, or Chrome, or whatever browser you use, only Firefox.
The NoScript actually blocks all Scripts from running automatically when you goto a Website. A Script is something that Computer Programmers make to load videos, load photos, load page content, and ads, or even can run tracking cookies on your pc, and they will report your surfing habits. They could also be used to have Scripts that Steal your Passwords, Banking Passwords, or Track your Credit Card #'s, so if you buy things online then you need NoScript, so you don't get hacked, and have your Credit Card's stolen.
Once installed and downloaded, Firefox needs to re-start, then the app is running. You can see if it is running by looking at the bottom right hand corner of the Firefox window will be an S with a white circle around it, click on that, and that is how you control what Scripts run on sites. You can either Trust this site, or Trust this Script, but NEVER Trust All Scripts! Block scripts that have "Ad" in it, so that they don't give you tracking cookies...
Whenever you goto a new web-site NoScript will pop-up at the Bottom of the Screen and ask if you want to display all Scripts, or just a few from the Page, and you can click on the videos that have an F in the middle and say OK and they will play normally, but this is a GREAT PROTECTION from VIRUSES!!
Also CCleaner, which can be downloaded here - http://www.ccleaner.com/ - this is a GREAT Application and MUST GET for WINDOWS USERS, because it will CLEAN your machine. When you download Scripts and Cookies, they stay on your machine whether you are Online or not, and they will report and track the sites you goto, also many Viruses are spread from cookies from un-trustworthy web-sites, so to get rid of them, get CCleaner and do a Full Clean, and remove everything it finds.
CCleaner will clean your:
- IE - cookies, history, etc.
- Firefox - cookies, history, etc.
- All browsers
- Fix Regirstery Issues Also.
I would recommend running this program whenever Windows un-expetecdly shuts off on you, which as we all know happens from time to time. This is usually due the fact of browsing a web-site that has bad scripts running and they infect your computer. Run CCleaner and this will remove all of the infections.
Hope you find this helpful!