To Everyone.... Rated 5 out of 5 stars

This add on only clears the internet memory cache of sites not currently loaded in your browser.For example, if you have this add on site open, and you clear the cache, when you go back to a previous site all the images loaded into memory from there will be re-loaded again.When you x out a site, firefox for some reason still keeps those things into cache, assuming you'd go back to that website in the same browsing session, RAmback just clears memory cached thats not in use....hope that explains it, and I've watched the memory decrease using this extension when I clear the cache, it really does work...