Pastejacking is an interesting new exploit that was discussed last week on HN: https://news.ycombinator.com/item?id=11757973

I took a crack at creating a patch in the form of an extension since I’ve created some similar extensions before (Adblock Fast, Disconnect, Facebook Disconnect). The extension works by providing a small shim to override exploitable JS methods on the webpages you go to.

You can install Hardened Paste for Chrome from the Web Store: https://chrome.google.com/webstore/detail/hardened-paste/gie...

An Opera port is in review and, if there’s interest, we can also port the extension to Firefox and Safari.