I am using xubuntu 13.10. Since the last update, when I am saving files I cannot rename other files, there are missing buttons in context menu like rename, cut, copy, etc...

let`s say I edited the file named style.css in firefox, and I want to save it, but i do not want to overwrite the original, I want to rename the original for ex: style_orig.css and save the edited file with the name style.css. for doing that I must open thunar, navigate to that file, and rename it, after that, I can save the file from firefox.

let`s reformulate this question:

if I want to overwrite a file, but preserve the original, then I must make a copy of the original.

Well, I can not do this when saving the file from the application, I must open thunar and navigate to that file which is an additional task I have to do. It`s a waste of time.