Last week, we’ve touched on about:cache but did you know that there are a lot more about: pages in Firefox?
From the top of my head, I know of
about:cache — We’ve touched on that last week in this article.

about:config — Where the internal organs settings of Firefox are located. You may have probably been in this page for some performance tweaks in the past. I’ll compile all the links I’ve followed and try to put up an explanation to each setting you get to change. As the doormat page suggests, this is a dangerous place. Get out if you’re scared. >:)

about:mozilla — a prophecy-like page that looks like a passage from some holy book. Creepy. :S You can read more about it at the wiki. Check out the page source for more easter egg goodness. :3

and of course, about:blank — your friendly, no-nonsense blank page.

Ngayon ko lang nalaman ang about:mozilla
Mikko
19 Feb 10 at 8:53 am
Ry, you forget one of my fave about: pages…
about:robots
Edgar Ilaga
19 Feb 10 at 8:55 am
I didn’t know about those about:robots thingy. :O
Iz zo cooool. I pressed the button twice just because I can.
rystraum
19 Feb 10 at 8:58 am
I wonder what happens after I pressed the button twice
)
Jeune
23 Feb 10 at 4:47 am