Shared components used by Firefox and other Mozilla software, including handling of Web content; Gecko, HTML, CSS, layout, DOM, scripts, images, networking, etc. Issues with web page layout probably go here, while Firefox user interface issues belong in the Firefox product. (More info)
Created attachment 577123[details][diff][review]
Would be nice if the JS console could print to stderr. This would allow things like emscripten to print out warnings separately from their normal output.