Definition A. (proper noun): An overrated Web browser made by Mozilla, often used for either:
1) The vast amount of largely-useless add-ons it has;
2) Viewing pornography on the Internet;
3) Its obvious superiority to Internet Explorer (AKA IE);
4) Its obvious superiority to all other browsers; or
5) Its obvious superiority to life, the Universe; and everything else, including the kitchen sink and a unicorn's horn count.

Definition B. (noun): A synonymous term for red panda, which is an indigenous animal to Southeast Asia.

Definition C. (verb): A rapidly-spoken order from either an organization's boss or some other high-ranking officer, most often used to kick another employee out of their job. Usually, that said employee has either:
1) The given name "Fox;"
2) The surname "Fox;" or
3) The nickname "Fox."
Example of Definition A:
Person 1: "Dammit, Internet Explorer just crashed on me again!"
Person 2: "Well, why don't you just use Firefox, then? It'll save you a lot of trouble."
Person 1: "Um, what did you say?"
Person 2: <inefficiently tries to explain what a Web browser is, and what Firefox is, and what its benefits over IE are, and so on, until Person 1 is finally convinced.>
(Later that week...)
Person 1: <goes on long rant about how awesome Firefox is.>
Person 2: "I know, right?!" (Etcetera, etcetera.)

Example of Definition B:
Some random person: "Red pandas are cute. No exceptions."

Example of Definition C:
Some CEO's Wife: "FORTHELOVEOFGOD-FIREFOX!!!!!"
Some CEO: "Okay, fine, whatever- I'll do it!"
by foxhead120 October 02, 2010
Photos & Videos
Top Definition
Internet browser by Mozilla. Uses next-gen technology to make the best browsing possible with such features as pop-up blocking, useful extensions, custom themes, passowrd manager, an easy to manage download manager, and many more great reasons that make Internet Explorer absolutely obsolete.
"Firefox makes Internet Explorer look like complete crap."
by ckybam May 06, 2004
The best web browser for looking at porn
i use firefox's tabbed browsing feature while i masturbate
by ====0) December 28, 2004
a recently developed and released "next generation" internet browser from the developers of mozilla browser. it brings you tab browsing and pop-up blocking technology and a high-speed internet browsing experience.
a: are you still using that crappy ol' internet explorer?
b: yea, why?
a: dude, just stop using it! download mozilla or firebird from mozilla.org and you will see what internet surfing really means!
b: ok, whatever.
by alperthereal February 10, 2004
The web browser I am currently using to view this site. Entirely customizable and secure (unlike Internet Explorer, the worst browser ever made)
Whatever Internet Explorer can do, Firefox does better. Whatever Internet Explorer does not do, Firefox can. Face it, Firefox pwns all
by firefox user August 14, 2004
One of the safest, most efficient and bullshitless browsers out there (among others such as Opera).

Has the most useful plugins ever created, such as "FlashBlock" which completely eradicates flash ads on web pages that may slow down your browsing, and those annoying "Shoot the Ninja and get a free iPod!" ads. As well as Fasterfox, which optimizes the speed, and many more.

The great thing about this browser is that it DOESNT install crap on your computer without asking you prior to that...Internet Explorer by Microsoft, for example, randomly changes it's homepage, installs adware and spyware and third party crap without your knowing.

With a built in google toolbar (which, incidentally, doesnt take up 3/5ths of the screen like on IE), it makes searching a breeze.

Definitely the way to go for an optimized browsing experience.
-dude, internet explorer blows
-fsho get firefox
by ivansusanin1 January 02, 2006
The browser reloaded.
Firefox is secure and standards compliant. Internet Explorer has security holes and poor standards support.
by GastonRabbit June 29, 2004
Mozilla's answer to Internet Explorer. Firefox includes popup blocking, tabbed browsing, extensions, a download manager, and is much more secure than Internet Explorer, because it doesn't use ActiveX or active scripting.

Firefox supports virtually all the plugins IE does, such as Flash, Java, RealPlayer, etc. You just click on where it says "download this plugin now" and it'll be installed automatically.
When I was a newb, I used Internet Explorer, but now that I know more about how the Internet and computers work, I've switched to Firefox for good.
by shadowhawk July 09, 2004
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