how to use firebug
After I find the element that I want to edit in firebug, isn't there a way to change it and save it? I have edited it but how can I get it to stay edited? It just goes back to the original unedited element.
ప్రత్యుత్తరాలన్నీ (2)
If you want to automate the change to the page, you might use an extension such as Stylish (apply custom CSS) or Greasemonkey (run JavaScript against the page), once you have confirmed in Firebug what exactly you want done. This still is a local, client-side change. Browser-based developer tools and page modification extensions generally do not have write permission on the server.
Note that current Firefox versions have a lot of built-in web developer tools including an Inspector and Style editor.