Is it possible to see all edited styles in Firefox developer tools?

Question

My preferred CSS workflow (at least when tweaking existing CSS) is to edit directly in the browser using the 3-panel Inspector panel, then copy the edited styles to my style

Answer 1

This is currently only available in Firefox Nightly. In about:config set devtools.inspector.changes.enabled to true. This will create a "Changes" tab in the dev tools with a Git-like panel showing all your changes.