Are you saying you can not copy and paste links? If so, and me assuming you are using a windows computer, then I can relate. The problem has to do with what is described as 'clipboard memory.'
I am very talented when it comes to screwing up the settings on a windows computer. I've no clue what is wrong with me. Anyway, nice free tune up tools like advanced system care, generally repair my self inflicted problems.
Then there is always good old system restore you can try.
If you're not talking about a problem with a windows computer, then you should completely ignore my answers here.