Discontinued: Disable clipboard manipulations

Disable clipboard manipulations Firefox extension allowed hiding copy, paste and cut events from the webpages. These events are commonly misused to disallow copying content from a page or to insert additional text into the copied snippets. The same functionality is now available in Firefox, one simply needs to go to about:config and set dom.event.clipboardevents.enabled preference to false.

The extension source code is available under https://github.com/palant/nocopypaste.