On Firebug if you want to Save HTML and CSS Changes your can Use the “Firebug” Addon Firediff
After you install it you will find on Firediff Window a New Tab Changes that will serve to Inspect and Save changes made on your CSS file.
-
To Inspect the Changes you made:
Changes > Change Log -
To Save your Changes:
-
Right click Inside the Change Log Area
-
Select “Save Snapshot“
-
In a Similar Way you can Save also the HTML Changes made when Editing…
HOW2 Getting-Started Visually with Firebug CSS Testing
Good Development with Firebug! :)