Install Webshots Premium Grabber v0.3 (supports Firefox 3)
Click on the link above and Firefox will begin begin the installation. Perhaps, you will have to allow to install extensions from the site if Firefox prevents it.
Or you can download it by right clicking on the link and selecting "Save Link As...". Then you drag and drop an '.xpi' file into Firefox to install it.
How to use
Select a pro photo you want to download and go to a download page. There you should right click on the image and go to the "Webshots Premium" menu. You can save, download the image or copy it's location. Have fun.
Development
I won't develop this extension anymore, only update it to work in the next versions of Firefox.
Personally, I use it very rare, thus email me if it needs an upgrade. Email: dr.fa1k0t@gmail.com.