What is X-Clacks-Overhead?
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Add-on summary
This is a fork of the GNU_Terry_Pratchett extension, fixed to support http-equiv meta tag detection (as long as only one X-Clacks-Overhead meta tag is used). Thanks to IgnoredAmbience's review of the original extension for the required fix of changing "Document" to "document" in gnu.js.
Original description
In tribute to the late Sir Terry Pratchett many websites are adding the message "GNU Terry Pratchett" into the html header "X-Clacks-Overhead". This plugin allows you to see when a website is using the header and read the message included. The message is also displayed visually in the semaphore style from the upcoming board game "Clacks" by Backspindle Games.
Concept: Richard Atha-Nicholls Art: Amy Atha-Nicholls Coding: Rob Grundy
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Risk impact
X-Clacks-Overhead is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install X-Clacks-Overhead if you trust the publisher.
Risk likelihood
X-Clacks-Overhead is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.