browser should show progress. Sometimes you think it is frozen , so you refresh , and it screws up the whole session.
At the bottom it should show the web address and if it is making progress or stuck, because the website sucks or the browser is stuck. If you jump the gun and refresh some secure websites make you go through new verification **** to get back in.
Michael Patsis commented
Make the browser show progress to avoid clicking again when it is not necessary.