So I’ve been using Firefox for a couple years now and the one thing that I hated about it was how broken images were not being displayed.
As a webmaster I need to know when there are broke images on my websites and it has been a pain switching to IE and then to Firefox just to see if there are broken images.
Well after some searching I found a solution!
In order to see broken images with Firefox you need to do two things:
First install the Greasemonkey addon.
Hundreds of scripts, for a wide variety of popular sites, are already available at http://userscripts.org.
You can write your own scripts, too. Check out http://wiki.greasespot.net/ to get started.
Now install the Broke Image Placeholder code from userscripts.org.
Now as long as you have show_image_placeholders set to true, which by default it is. You should now see broke images! Yay!
Now to find those cookie stuffers!