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The Chrome community responded with staggering enthusiasm and, acting together, raised 60,599,541 tabs for charity.


Each Chrome user chose the causes their tabs would support, which determined how we allocated our one million dollar donation. Accordingly, we’re excited to make the following donations on behalf of the Chrome community:
  • $245,278 toward planting trees in the Atlantic Forest, one of the world’s endangered tropical forests.
  • $232,791 toward providing clean water, by building freshwater wells for communities in developing nations.
  • $112,078 toward building shelter, to be constructed by volunteers for impoverished families in Latin America.
  • $267,336 toward administering vaccinations against meningitis to combat outbreaks in Africa.
  • $142,518 toward publishing books by local writers and illustrators, which will be created and donated to schools and libraries across Asia and Africa.
We’ll be making the donations at year-end, and our partner charities are already looking towards applying the funds from Chrome for a Cause in 2011. Read more about how your donation will be applied specifically by visiting our partners’ websites:
We're glad to connect Chrome users with these important causes all around the world -- so much so that we’re already thinking of more Chrome for a Cause projects for the future!

Feel free to keep your extension installed if you’d like to hear about future opportunities to work together with the Chrome community for a good cause. We’ll post all the details about how to participate on the Chrome blog, so make sure you check in when you hear about new opportunities.

Thanks for joining us in this endeavor. Happy Holidays!

Posted by Sarah Nahm, Product Marketing Manager
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This holiday, we wanted to enable the Chrome community to work together for a good cause. Starting today, we invite you to support five worthy causes by counting and “donating” the tabs you open in Chrome.



Everyone’s total tabs will determine a charitable donation made on behalf of the Chrome community, up to one million dollars. Here's what your tabs can do:
  • 10 tabs = 1 tree planted
  • 10 tabs = 1 book published and donated
  • 25 tabs = 1 vaccination treatment provided
  • 100 tabs = 1 square foot of shelter built
  • 200 tabs = 1 person's clean water for a year
To find out more about this effort and the organizations we're partnering with, visit google.com/chrome/intl/en/p/cause/.

Want to participate?
  • Get the Chrome for a Cause extension
  • Browse the web with Chrome between December 15 - 19
  • At the end of each day, you’ll be prompted to click on the extension to submit your tabs
  • Choose which charity you’d like to support with that day’s tabs -- you can always support the same charity, or pick a different one each day
Next week, we’ll be sharing the details of the good deeds you’ve enacted. In the meantime, browse away!

Posted by Sarah Nahm, Product Marketing Manager


Added on December 15, 2010:

In order to prevent hackers, spammers and bots from manipulating the extension, and to maintain the integrity of the campaign, we ask that users login with their Google account before submitting their tabs. As part of this step, the account log-in process requires connecting to one of Google's APIs to connect with your account. The Google Contacts API is the lightest of all Google APIs and grants the least permissions. Though we use the Contacts API to verify your account we do not use any of your Contacts data in the Chrome for a Cause promotion.

Rest assured, Google's not going to spam your contact list or send you a single email about this.
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Here’s how you can find the puzzle and the solution.
First, around 2:24 in the video, you see the following equations on the board:


The constants solve out as follows:
G = 900.91
C = 8335727
H = 269462689
R = 222647
O = 694079
M = 552
The final equation is written as:
X = G / (C*H*R*O*M - 3)
Plugging in the previous answers gets you to:
900.91 / 191605050401140404051920181525
At that point, the puzzle changes from math to code where the numbers represent letters. It hints to that by the final equation spelling CHROM3, but we expected people to get stuck here and have to play around for a bit. The first mental leap is that you have to visually identify 900.91 as goo.gl (just like spelling words on a calculator: 9=g,0=o,0=o,9=g,1=l). The division sign is a slash ( / ), so this pretty clearly points to the Google URL shortener. From there, you need to figure out the shortened URL.

The number 191605050401140404051920181525 may confuse people for a bit, but the large number of zeros and the repeated "04" and "05" sequences in it visually allude to pairs within the string. Once you see that, it can be broken up into:
19 16 05 05 04 01 14 04 04 05 19 20 18 15 25
If you've gotten this far, you've probably noticed that all of those numbers are between 1 and 26. From here, it's just a straight mapping to letters of the alphabet (A=1, B=2, C=3, etc). Decoding the full string gives you:
s p e e d a n d d e s t r o y
Putting everything together, the end result is:
That URL points to a page where you can fill out a form to request a shiny new Chrome notebook (the form is closed now, of course).

Posted by Chris Lyon, Hardware Engineer, Chrome OS Team
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