Here are all of the useful (and not so useful, but still funny) about: triggers you can type into your address bar.
about: — The same page as “Help -> About”.
about:blank — A blank page. Useful for setting as your homepage.
about:cache — Displays cache statistics and disk cache directory location.

about:config — GUI for modifying user preferences.
about:crashes — List of Breakpad crash reports, with links and datestamps. Only in products based on Gecko 1.9 or later (Firefox 3, Thunderbird 3, SeaMonkey 2).

about:credits [...]

Want to help Firefox set a world record? Sure you do! Mozilla and company want to set a world record for the number of browser downloads within 24 hours.
The New York Times ad…Firefox Flicks…the Firefox crop circle…Operation Firefox…you name it! The Firefox community is always up to some cool, collaborative way to declare their passion for Firefox. What better way to do this than band together to set a Guinness World Record for the most software [...]

The ladies out there that like for their browser to look a little more on the girly side don’t get many choices when it comes to themes for Firefox.  Together here I have picked some of the best looking feminine themes I could find on this side of the technicolor happy rainbow.
Lovely Lilac / LL 1.0.0 – Works With Firefox: 2.0 – 2.0.0.*

Any Firefox user worth his weight in add-ons can block advertisements, using tools like AdBlock Plus but few can block the ads can replace them with something to give your Web browsing experience a little more class.  How about replacing all those punch the monkey ads with art?
It this entices your cultural taste buds, then you might want to add the Add-Art extension to your own Firefox install.  Add-Art replaces advertising images on web pages with contemporary art from a [...]

The tiny little theme we all know and love is now ready for Firefox 3.  Classic Compact might be my favorite out of all the “Mini Me” themes out there for Firefox.  Not only does it shrink the browser interface of Firefox but it also does so in a visually appealing way.
Not only do we get a theme to share though, we awesome have an add-on to help customize Classic Compact even more.  The rightfully named Classic Compact Options extension [...]

With the upcoming weekend holiday, I know a lot of you will want to stash away a few links to save for later – maybe when Uncle Sam is telling you his World War 2 stories again or when the pool is full, or you has a belly filled with mashed potatoes. Here is a little link love for some other popular, interesting and neat stories from around the Web.
Use Yahoo! Mail or Gmail for MailTo Links in Firefox [...]

Time to have us a good old extension cage match. In one corner you have the Hawaiian punch of the link sharing world – Mahalo Share. In the other, weighing in with way too many link sharing resources is Shareaholic. Here is what each brings to the table…
Mahalo Share – Share and recommend Web pages across many different services; recommend a link once and have it automatically posted to any of Twitter, del.icio.us, MySpace, Ma.gnolia, Jaiku, your [...]

Have a hidden talent of being able to walk people through something?  Coming from the web hosting world, screencast tutorials are nothing new to me – see them used every day.  Now there is a new contest from Mozilla that will get you involved with sharing knowledge via your own desktop tutorial.
Here are a few more details about the contest:
Get ready to participate in the Firefox Screencasts contest! This is your chance to use your talents and passion for Firefox [...]

Sure there are tools, downloads and services that may do this for you, but what fun is that?  Just in case you don’t feel the need to download another addition to the browser just yet – here is how you can backup your Firefox saved passwords the manual way.
First, navigate yourself to your profiles folder and then you want to copy three files, they are named:

signons.txt
signons2.txt
key3.db

Copy and past them into the place you want to back them up to, and [...]

Looks like the release candidate one of Firefox 3 is really gaining a lot of (well deserved) press.  Go team Mozilla!
TechWeb – Firefox 3 Release Candidate 1 Now Available
Mozilla Links – Firefox 3 RC 1 full review
Lifehacker – Firefox 3 On Track To Be Speediest Browser
Asa Dotzler – Firefox 3 release candidate one
Hardware 2.0 – Firefox 3.0 RC 1 takes the lead on speed
The Tech Lounge – Firefox 3 RC1 Goes Public
Been browsing Google’s Blog Search reading awesome review after [...]