Rated 3 out of 5 stars
I'm having the same problem as other users. Sometimes it copies the contents of the URL bar. It makes this very difficult to use at times.
Beyond that, it doesn't copy the contents of text boxes in forms, which defeats the purpose for me. I understand why it works that way, but it should be configurable.
Response to dev:
I was able to reproduce it within an hour of using the tool. It worked at first, then I noticed it happens when I copy some text then open or switch to a new tab. Windows 7, Firefox 12.
In regards to text boxes, yes. I'd like to be able to copy from anything within a web page, but I don't want to copy from things outside of the webpage itself.
I really can't reproduce the copying of URL bar contents so far...
So you'd want a pref to copy from text boxes, but you wouldn't want to copy from the URL bar? That seems a bit complicated.