(In reply to Asif Youssuff from comment #3)
You could find this out using the "inspect" web developer tool, or (in most cases) by opening the image in a new tab. Is there some reason not to do either of those, which are still in the same context menu (and, being at the top/bottom, are easier to access)?
I actually did try "Inspect" initially, but because the page was using a picture tag with multiple sources, the fallback image is what showed up in the inspector, not the image actually served to me.
This seems like an issue with the inspector that should be filed separately.
As far as opening the image in a new tab, I suppose that may have worked, but is a pretty indirect way of getting to this and I did not think of it - that is two steps instead of one.
I don't understand why you consider this 2 vs 1 step - it's still just 1 context menu item, and then having to either navigate the list in the page info dialog (which per reddit is allegedly only 60% of the time selecting the right image...) for the right image, or hovering the title of the tab. Or you could just
copy image link and then the URL would distinguish what type you get (in this particular case, for the
<picture> element). The page info dialog also doesn't seem any easier or harder to get rid of than the additional tab that "open image in new tab" would produce.
Is the only reason to use "view image info" to find out what the content type of the image is? And... why would you care about the type of the image in the first place?
It was in this instance (for me), although I have used it in the past to get the images' dimensions without needing to view the image. Your proposed workaround above used to be an easy way to do this back when Firefox had a titlebar by default, and I could "View Image" to look at the dimensions and quickly go back.
You could still enable the titlebar if this is important to you, or as you say you could use the tooltip.
Today, this is more annoying as I need to hover over the tab title to get the tooltip containing the dimensions I am looking for.
I suspect we would take patches that show this kind of metadata (size, image type) in the whitespace (well, grey / dark background) around the image in the image viewer document, if that's the main issue here.
As far as caring about the image type - I was writing a web page and wanted to see whether I was getting the optimized webp image or whether I was getting the fallback image (like what Inspect seemed to claim).
Again I would suggest the inspector here needs fixing. You could also rely on the network pane in devtools, if verifying server behaviour is what you're after.
Basically, there are a lot of other ways to get this information that should be just as easy if not easier (and that double up doing other work like showing you the image in a convenient size and place, unlike the weird preview in page info which also has other issues), this isn't a usecase most people have (which we have telemetry for), other browsers don't have an equivalent which further cements the understanding that this isn't crucial functionality, so the item got removed to try to simplify the menu and make it easier to find the items that do get use.