''Duplicate post, continue here - [https://support.mozilla.com/en-US/questions/809370]'' I have several very large PHP scripts that are written to cut and paste text from a browser window and then paste that text into a script. The website you cut and paste from has a bunch of javascript behind the scenes that firefox 3.6 copied automatically even tho it did not show on the screen. 4.0 does not and this makes this very elaborate and required script not work in firefox. how do I get cut and paste in 4.0 to behave like cut and past in 3.6?