Firefox Cache

Right, so i browse /b/ often with Firefox. Problem is, sometimes i open images in tabs, and forget to save them immediately.

I come back in an hour and try to save them, but Firefox is gay, and refuses to save from cache. It wants to redownload the image from the internet.

By this time, /b/ has already purged those images from the server.

Is there anyway to browse Firefox's cache, or tell Firefox to save images from cache if downloading from the server is impossible?

PS, I can't seem to do it from about:cache .. and the actual cache files don't have extensions, so i don't know which are images, which are html, swf, etc.

>>5
That's not DOS, that's the Windows NT console subsystem, for which you can download native ports of the GNU console utilities, including bash if you prefer it, Perl, PHP, Python, as well as unique utilities not found in Unices like FAR Manager.