The problem is very simple. Out of habit from Windows, when I try to upload to a website a file such as a picture, then in that moment when I opened the Explorer window, I can with the files to do almost everything, and delete and rename.
For example, my picture has the name 123.jpg well I decided to fix it peredovat into something understandable, like screenshot.jpg... so in Lubuntu I can't do that. You have to separately open Windows Explorer and rename there. Very uncomfortable.
There are some hacks to change this?