Merge pull request #43 from itsgoingd/add-privacy-info

Added privacy information to the readme

README.md

@@ -14,6 +14,28 @@ Read more and try it out on the [Clockwork website](https://underground.works/cl
 
 *This repository contains the Clockwork Chrome extension.*
 
+### Privacy
+
+Installation and some updates of the Clockwork extension require privacy permissions.
+
+Since our browsers handle a lot of personal information, we feel it's important to explain what we can do with each permission and why do we need them.
+
+##### Permission to "Access your browsing activity"
+
+Clockwork uses the `webNavigation` API, used for notifications about browser navigation, eg. entering URLs to address bar, clicking links, etc.
+
+Used for the *preserve log* feature. When *preserve log* is *off*, we use this API to know when to clear the requests list.
+
+##### Permission to "Read and modify all your data on all websites you visit"
+
+Clockwork uses the `webRequest` API, used for observing HTTP requests made by the browser, including submitted data, URLs, full response content, with ability to block or modify these requests.
+
+Used for observing incoming HTTP requests for Clockwork-enabled applications and loading Clockwork metadata from headers.
+
+We immediately disregard any requests to non Clockwork-enabled applications, we never modify or store requests.
+
+The extension available in the Chrome Web Store or Firefox Addons is always the latest tagged commit in this repository with no modifications.
+
 ### Licence
 
 Copyright (c) 2013 Miroslav Rigler