Block Last Measure
Last Measure is a shock site (and several mirrors) that uses a combination of Flash, forms and ActiveX to spawn multiple popups in virtually all browsers, while displaying graphic images, and announcing audible messages. Generally this leaves the browser totally unresponsive, and may crash the operating system with certain browsers. In Opera, it is possible to defeat it with swift use of Ctrl+W, but it is easier to just install this User JavaScript, which attempts to automatically detect and disable the Last Measure exploit. See
Wikipedia for more details about Last Measure.
Changelog
v 1.2.1: Prevented mis-detection on some sites
v 1.2: Added protection against another variant family
v 1.1: Added protection against older variants
v 1.0.1: Fixed a bug that prevented the script from working