Do Not Fool

Do Not Fool is like Do Not Track, but it's an April Fools' joke for 2011 that purportedly allows users to opt-out of Web-based shenanigans on April Fools' Day.

Origin and Motivation

The idea was originally proposed by Atul. Many Mozillians liked it because it speaks to a significant number of people who dislike April Fools' day, and also provides a nice opportunity to educate readers about Do Not Track.

It is also reasonably humorous.

Reference Implementation

Gandalf made a reference implementation. Its source code is on the Add-ons Builder, and the add-on itself is on AMO.

Logo

The logo pictured at the top of this page was created by Sean Martell.

Blog Post

A post entitled Protecting Users From An Age-Old Threat was published on the Mozilla Labs blog announcing the initiative. Additionally, the post was propagated through official Mozilla Twitter and Facebook channels.

Reception

• GigaOm included it in their list of favorite April Fools' pranks.
• Hacker News thread

Sites Supporting The DNF Header

To our surprise, some sites actually implemented support for the DNF header.

• ourdoings.com
• toptranslation.com

Support For The April 1 Firefox Nightly

Due to bug 645063, DNF will not work as expected in the April 1 nightly.

Solutions:

• Clicking privacy/advanced/privacy enables the injection.
• The latest revision of DNF supports the nightly.