New technique for blocking images? (Firefox)

Something that has been an issue for me is advertisements. Porn ads have been known to show up on sites that have nothing to do with porn, and they are not as easily blocked. They also seem to bypass Adblockers. (For the record, as annoying as normal ads can be, I respect the right of people to monetize their efforts, so I only try ot use the adblockers to avoid problematic material.)

So, found something new to try. In Firefox 55, you can right click an image and click View Image Info. From there, click on the checkbox for "Block images from [website]." It may help.