After further testing, I have found out that it works perfectly in Chrome, however when clicking the link in Firefox the HTML encoding somehow happens between the link and the address bar.
Tested using the following browser version with only the Ubuntu Modifications 2.9 enabled.
Firefox 33.0
Mozilla Firefox for Ubuntu
canonical - 1.0
Example output using TW URL:
"https://en.tribalwars2.com/game.php?world=en3&character_id=[removed]#/"