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Firefox 4 Restartless Add-ons

This post discusses how to create restartless add-ons for Firefox 4 and provides the code for a working Hello World restartless add-on.

HTML5 Canvas To PPM Serializer

This post demonstrates how to save the contents of a HTML5 canvas object to a Portable Pixel Map (PPM) encoded image file. It also discusses various gamma transfer functions including sRGB, radiance and luminance.

HTML5 Canvas Element Rubber Banding

This post demonstrates one method of implementing rubber banding on a HTML5 canvas element using JavaScript. It also demonstrates how to horizontally flip, emboss, invert, and gray (grey) sections of an image.