How to unblock images on Firefox?

I'm not sure what version of Firefox I have. (sorry)
I accidentally double clicked on an image and it blocked the image. In both my tool bar and tool box section I don't have options so I'm really lost on what to do.
Help?

2010-05-10T17:41:39Z

In my tool tab I have-
Web Search
Downloads
Add-ons
Error Console
Page Info
Clear personal data

I don't have options anywhere.

Roman2010-05-10T16:30:12Z

Favorite Answer

Click on tools located on the top of firefox windows then click on options in the list. In options click on tab named content and then check (Load images automatically).