The AdBlock for Safari App has got two Safari App Extensions: one for basic ad blocking functionality, and a second one (comes together with the app) that sets an icon in Safari to manage ad blocking details for every single page. With this icon (at least in older versions – I'm not sure whether or not it's still there.) you could block elements of the page like pictures, frames etc. from beeing displayed or printed. That seems to be exactly what you are looking for.
I just saw the icon preload on a new site I visited before the site favicon loaded. I don't think Cookie is removing it - as I also remove favicons regularly in my install. I also didn't see any trace of the default favicon in the Favicon Cache folder
Do you remove favicons while Safari is open at all?
have you tried disabling Cookie for a restart of Safari, to see if the file is recreated
Implicating SIMBL, which Safari Cookies apparently uses, in repeated Safari crashes. Nobody else reported the whole system hanging, which is what happened in my case.
Also my computer (running OSX 1.8.3) has a Crash log saved with a filename SIMBL.
If there is a compatibility issue here, it is quite serious. But it does not show up all the time. I cannot say what triggers it.
If SIMBL and Safari Cookies are to involved in my crashes, I hope that the issue can be resolved as I like what this useful add-in does. And speaking for myself only, I hope it is not my Macbook Pro hardware that is to blame.
Most likely not, its more of a local privacy issue(but its better to play it safe). I was shocked to learn that anyone with access to my computer could read this file and discover every single file downloaded to my computer.