Clipboard Permission Manager

Clipboard Permission Manager is a browser extension which allows users to grant JavaScript access to the clipboard on a per-page basis. This access is given through the standard document.execCommand() function, but such access will not require a corresponding user event like a click or keypress if explicit permission is granted using this extension.

This extension is a work-in-progress and is currently implemented for Chrome. A Firefox version is planned.

Background

Clipboard access is provided by most mainstream browsers through the "cut", "copy", and "paste" commands given to document.execCommand(), as defined by the W3C Clipboard API and events working draft. It is up to the browser to decide exactly how to restrict access to the clipboard. Unfortunately, both Chrome and Firefox restrict clipboard access by only handling these commands in very specific cases which require user interaction, and do not provide a mechanism for granting access an a per-page basis such that user interaction is not required going forward.

This extension is intended to provide such a mechanism, and it is our hope that browsers will provide such a mechanism on their own in the future, rendering this extension unnecessary.