Maybe it’s something in UI, but many times I watch pictures (not even videos, they are their own can of worms), and want to save them, it shows me that I’m downloading them again although they are cached in whatever app I see them from.
Like this link with a happy dog: https://i.pinimg.com/736x/71/1e/52/711e52f1d6c7ead78f4380214f68c259.jpg
I see it in high rez in my browser, I can zoom in, and I can’t tell any difference from a copy that I can download, but it’s still, well, another download if I want to save it, and not a move from cache to my download folder, another request to the server, another waste of traffic.
Is there some rule of sandboxing for everything you load that I don’t know about? In cases like our fediverse, I wouldn’t like to cause double load when I already have the picture I want. Can I cut it down with some plugin in mobile Firefox?
I feel like I’m missing something big time.
a straight, ordinary image display in a page or tab will save to the cache, and if you then save it to disk yourself from there, firefox will utilise the cache. i see this behaviour every day on pc.
some addons will interfere with this. and cache settings, of course, do as well. there’s also some ways to construct a web page that makes it harder to save an image, or doesn’t save the image to the client’s cache at all–requiring another hit to and download from the origin to do the requested ‘save’