Looks like it's old and outdated and hasn't been updated in 3 years. It really doesn't do anything. For example: If you browse to Yahoo's main page and click the add-on icon, it only blocks the shopping basket icon or the 3 dotted vertical icon next to each article or the mail icon on top of the page. If you click on an article in Yahoo, a popup window in Yahoo let's you read the article and if you click on the add-on icon again, it only blocks all the photos and icons under the Yahoo popup window. One star for the effort.

Tested on Firefox 82. All videos are still visible. About 50% of images are removed.

This add-on doesn't block anything from LOADING, it just hides them away from the screen, that is, the Page is fully loaded, including images and videos, they are just not displayed (to test it, load any Page with images blocked, go off-line, then disable bocking, and the images will pop back up instantly). May have some use for someone that wants all images loaded, but just don't want to see them, but that's too specific. To most, it's pretty useless, and misleads people to think they are saving bandwidth (author should clarify that fact on description).

This add-on has no effect at all.

I do agree! It's Junk! I want Youtube Videos blocked!

junk

Doesn't work on vers 57 of Firefox

The addon describes itself as an image blocker, but in early tests images are only blocked a few seconds after the page has fully loaded. This does not reduce bandwidth nor does it provide a clean user experience.