An Add-on for Mozilla Firefox Save back a file URI scheme document, but save from DOM, which means it would save changes effected by JavaScript. Made to allow Gecko (in Firefox) to be a JavaScript engine helper application, helping out other (source) editors that cannot run JavaScript themselves. A couple nice SVG example files to try out with linked from http://srguiwiz.github.com/save-back-xpi/save-back-examples.html Designed specifically for use with https://github.com/srguiwiz/adj-js as illustrated http://srguiwiz.github.com/adj-js/user-docs/#example-workflow Built version ready to install from https://addons.mozilla.org/en-US/firefox/addon/save-back-to-file-from-dom/ Build with a local https://developer.mozilla.org/en-US/Add-ons/SDK/Tools/jpm For Firefox 57 and newer, now replaced by https://addons.mozilla.org/en-US/firefox/addon/download-serialized-dom/