User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030612 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030612 add empty lines in html code everytime that the edited html is saved. Reproducible: Always Steps to Reproduce: 1.write a simple html document 2.save, save, save..... in Composer Actual Results: see your code, it have many empty lines Expected Results: no add lines

I must be set in "Retain original source formatting"

Alberto, You don't specify exactly where you're seeing these extra lines, but I bet this is a dupe of Bug 97278 - Composer adds newlines when switching view modes. Does switching from HTML Source to Normal tab and back cause the problem? If I'm correct, please mark this bug as a dupe. If not, please attach samples or a test case file.

Yes it was. Thankyou. Sorry by waste your time. I can say that I spend several hours searching a similar bug. *** This bug has been marked as a duplicate of 97278 ***