I use NoScript which can whitelist domains where JS is allowed. Often, sites will degrade without JS but if you're only reading something or whatever, it doesn'

I use NoScript which can whitelist domains where JS is allowed. Often, sites will degrade without JS but if you're only reading something or whatever, it doesn't really matter. And if it's totally broken, you can temporarily allow JS. Mainly, it's that I don't want my PC executing code that I don't know about, if I can help it. If I notice a site is e.g. requesting to run JS from twenty or thirty different domains I can be more cautious. Overall, turning Flash off by default (but still having it installed), using NoScript, Ghostery, and AdBlock, have really improved the web for me.