Hey, sorry for your experience using this extension. Although, to clear things up, the way this extension works is by retrieving all src tags on a page. This is the exact image source that is being displayed - these websites might be upscaling the images to display and so that is why you may seem disappointed. Regarding your first point, you are able to (de)select photos by clicking on them but filtering by size is not currently available.

Really glad you liked the extension! A filter option is definitely being looked into, so keep watching out for it.

Hey! Sorry about the confusion, but the options tab was not meant to be enabled. I do plan on integrating some options within it but for the time being I have removed it to avoid confusion. I have already released the update, and it should be out within 24hrs.