Also check that you still have a default browser setup, this often happens when a different browser is installed and then later removed and it leaves no default browser.
In IE click on the tools menu, select internet options, then click on the programs tab and click on the "make default" button.
Click Tools > options, click on the advanced tab and then click the button that says check now at the bottom, this will check if firefox is the default and if it's not will bring up a prompt asking if you want to make it default, answer yes if it does
and then what you select will be slightly different for everyone but something like "copy link location", once that's done post another reply and paste the link location (press ctrl + v ) in your answer