Introduction: Firefox Pranks!

Using add-ons in Firefox to enhance your experience is boring. For April Fools' Day, lets make the experience a little more bizarre.

Since these add-ons were meant to be installed on a victim's computer you'll only need two things:

- a victim who uses Firefox as his or her regular browser
- access to the victim's computer

To keep it simple, here are the links to all of the add-ons for your one-stop shopping pleasure. Each step will explain what each of these does.Just click on a link to install it in Firefox.

- Two Steps Back
- Rick Rollr
(Video removed by YouTube)
- The Devil's Inbox
-

Step 1: Two Steps Back

Once in a while the browser will go two links back instead of the next link forward. This is pretty subtle and will definitely frustrate someone and make them think they're going crazy. We recommend that you let them in on the joke before too long.

Source Code

Step 2: Rick Rollr

Getting people to click on links that sends them to the Rick Roll video is hard. They're on to your silly ways, but what if there was a 2% chance that any link, on any page, would Rick Roll them? Yeah, it would drive 'em nuts.

Code:
if(Math.random() > 0.98){
   window.location.href = "http://www.google.com";
}

That's a 2% chance of your window being sent to the google page. Tweak the number between 0 and 1 for odds of it happening and the URL for the target video.

Step 3: The Devil's Inbox

If your victim uses Gmail, then get ready to send their Inbox to hell. There's a good chance that their Inbox count will be stuck at 666. The odds of this happening? 66.6%

Source code

Step 4: Highs and Lows

Life can be funny and sad. And by life, we mean the Internet as a whole. But often the text doesn't quite reflect that so we're going to be randomly adding "*sigh*" and "LOL!" to the ends of sentences. Much better now, right?

Source code

Step 5: Sarcasm Enhancer

Do you really believe everything you read? Whatever. Now the whole Interwebs will be as sarcastic as you feel on a Monday morning.

Source Code

Step 6: What'd You Say?

People keep saying things. All over the place it's so-and-so said this, whatsisface said that. Doesn't anybody shout or enthuse or gush their thoughts?

They do now.

Source code

Step 7: For Real

Ya know?

Source code

Step 8: Watch It

Sometimes the page keeps loading forever...

Source code

Step 9: Dsmvwlr

Sometimes you don't need all the letters to read the text links.

Source code

Comments

author
bauerbach made it! (author)2014-05-09

The Rick Rollr video has not really been removed.You can still watch it at

author
applepeave made it! (author)2012-04-01

I love the add on compiler. I have made like ten of these and are now looking to unleash them all.... Just need someone to mess with..

author
JJohnson1701 made it! (author)2012-01-31

This is great, but the link to the all-in-one pack failed to download, and the Rick Rollr link was removed. I tried going to Roll Tube and recompiling the source with one of the other rick-roll videos, but it didn't work at all.

Would there be any chance of this being updated and re-released?

author
knex builder36472418 made it! (author)2010-11-17

whats the two steps back installment called- i cant fond it to delete it cause its really annoying my bro :)

author
individual128 made it! (author)2010-04-01

Thanks for sharing these. So funny. I have played with changing the source code, which is great because I didn't know you could make Firefox add-ons so easily. I'd like to modify the Rick-roll code, but the link to the source seems to be broken. Could you check it please?

Thanks!

author
fungus amungus made it! (author)fungus amungus2010-04-01

I didn't write that one, but I'm pretty sure this will set you on the right track.

if(Math.random() > 0.8){
   window.location.href = "http://www.google.com";
}

That's a 20% chance of your window being sent to the google page. Tweak the number between 0 and 1 for odds of it happening and the URL for the target video.

Since many sites have iframes for ads, a single page can have 4 or 5 windows load for what looks like one. We ended up with .98 for the value to avoid it being utter chaos all the time.

author
individual128 made it! (author)individual1282010-04-06

Thanks so much. Brilliant, it worked a treat. I have set one up to redirect to that mind-numbingly awful batman thing: http://www.youtube.com/watch?v=NrmPehlHK3w

My wife is going to hate me ;)

author
tanmanknex made it! (author)tanmanknex2010-04-01

Really?  Whatever.

author
gummypaul made it! (author)2010-04-02

Don't be messin' with my firefox now. : )

author
the_burrito_master made it! (author)2010-04-01

tsk... with my computer you get this prank all the time "sigh" whoa I must have gotten pranked "lol"!


NOOOO!

Lol jk.

author
godofal made it! (author)2010-04-01

this is pure evil

im going 2 use those as a late april 1st prank XD

its just that no one reminded me of april 1st....

author
travisttt made it! (author)2010-03-19

How could I change the link the person is sent to? Could I easily bother them with other random links?

author
travisttt made it! (author)travisttt2010-04-01

OK, I've become slightly smarter and have found where add-ons are stored. Inside of the firefox profile, where can I find this file?

author
Xxgold made it! (author)2010-03-31

How come i cant download?

author
compgeek_brad made it! (author)2010-03-31

 Is there any chance we could get the greesemonkey scripts??
the plugins are good but a lot of people i know use Google chrome, which wont support them (but natively supports greesemonkey)

author
fungus amungus made it! (author)fungus amungus2010-03-31

I don't have the GM scripts, but the source doe is in each step. Shouldn't be too hard to remake.

author
m4573rk3yb04rd made it! (author)2009-04-03

Does it only work on april fools day, or what?

author
zascecs made it! (author)zascecs2010-03-31

Ahh, I guess every day is fine...
>=) 

author
watermelonhead made it! (author)watermelonhead2009-04-26

no, i downloaded the sarcasm enhancer a few days ago

author
fruitkid101 made it! (author)2010-03-31

HOW DO I INSTALL? PLS HELP! CLICKING THE LINKS DOES NOT WORK

author
erikals made it! (author)2009-05-25

this 'devils inbox' trick is based on an interesting number in the bible which is 666. The Devil is generally associated with the number, as is a weird character also mentioned in the Bible who we know as 'The Beast'. Who could this character be? We've only to wait and find out.

author
lunchboxslayer27 made it! (author)lunchboxslayer272009-05-30

either michael jackson or rick astley..

author
abun1991 made it! (author)abun19912010-03-06

or Steve Jobs

author
erikals made it! (author)erikals2010-02-26

we don't know. I told you that.

author
NamasteNick made it! (author)2009-02-04

is it easy to undo?

author
erikals made it! (author)erikals2010-02-26

Yes. Click Tools>Add Ons, then click the 'gmailinboxer' addon and choose Uninstall. When prompted, click 'Uninstall'. Wait until you see a notice that says 'Restart Firefox to apply your changes.' Next to that notice there will be a button that says 'Restart Firefox.' Click that, then wait a while for Firefox to install the add on and open up again.

author
joejoerowley made it! (author)2008-03-28

Wow this is great!! Wonderful. The only I would do is change the rick roll link to this. I like it more.
Thanks

author
crazy monkey made it! (author)crazy monkey2008-04-05

lol i clicked on the link and it was pretty funny how did u make it? plz tell me

author
joejoerowley made it! (author)joejoerowley2008-04-05

I did not make that. But I did make a similar one.
Here! Enjoy, :)

author
timothymh made it! (author)timothymh2010-02-14

 Why is everyone acting so annoyed?

author
Kwitmeh3 made it! (author)Kwitmeh32009-06-19

i hate you

author
PhotoshopMan made it! (author)PhotoshopMan2008-04-26

I will eat your soul. That drove me crazy.

author
will421 made it! (author)will4212009-05-06

Right-click Firefox`s part of the bar and click maximize and then you can close the tab.

author
peach_fart made it! (author)peach_fart2008-09-19

i noticed it moves away from the back button and makes it go back to the same page. but to get out of it really easily, just click the arrow by the back button, scroll down and click the last page you were on.

author
jj32x made it! (author)jj32x2008-08-31

thats... annoying. i miight change my mates homepage to that.lol.

author
corey_caffeine made it! (author)corey_caffeine2008-07-19

damn you

author
fwjs28 made it! (author)fwjs282008-05-13

lmao that was annoying i just did ctrl+alt+del and ended Firefox cuz it wouldnt go away.....lmao.....

author
eviltechie made it! (author)eviltechie2008-07-15

I just did Ctrl+W to close the tab.

author
Audey made it! (author)Audey2008-04-15

nice...

author
bmlbytes made it! (author)bmlbytes2008-04-01

I hate you.

author
joejoerowley made it! (author)joejoerowley2008-04-01

Did you know instructables has a "be nice" policy, jk:)
April Fools!
If you want to squirt me with a squirt gun remotely using a live web interface go to this site. I made it from scratch. Enjoy!:)

author
bmlbytes made it! (author)bmlbytes2008-04-01

Nice try though. I've learned to check your links before clicking them.

author
joejoerowley made it! (author)joejoerowley2008-04-02

No, it honstly is a squirt gun. I might not of been in my office at the time though.

author
Kwitmeh3 made it! (author)Kwitmeh32009-07-27

that is still the same one, i checked the link like bml did

author
pyro13 made it! (author)pyro132008-07-18

Dude, that is awsome! can you please PM me on how to make a link do that?!

author
GreenDay made it! (author)GreenDay2008-04-01

I wasn't expecting the pop-ups again!

author
YummyPancakes made it! (author)YummyPancakes2008-03-29

Whew, for once I'm GLAD my proxy blocked it.

author
fungus amungus made it! (author)fungus amungus2008-03-28

Wow, that's nasty. I still like the link we have, though as it doesn't force you to shut everything down.

author
zachninme made it! (author)zachninme2008-03-28

Argh, I just went through that link, it was fun!!

Seriously, though, considering how often this can happen at times (by 5 o'clock on the Combo Pack, it can reach up to 10%!) I wouldn't want anyone to go through that so often.

author
joejoerowley made it! (author)joejoerowley2008-03-28

Yeah, that would suck really bad. I would pull my hair out. There are a few select people how ever that are in need of such punishment. (Bush, wink wink)

About This Instructable

254,448views

180favorites

Bio: I like to make things for the internets. I also sell a pretty cool calendar at supamoto.co. You'll like it.
More by fungus amungus:3D Printed US Population MapLight Painting With an IPhoneSuper Bright RGB LED Bike Wheels
Add instructable to: