Hi,
I have a lot of open tabs in Firefox about CodinGame and I sometimes can’t know what’s in it without opening it. My computer is old and if I open all these tabs, I will see OOM in the logs. 
It should be a nice idea if the HTML <title> header tag tells a bit more about the tab content:
- It’s a puzzle, which puzzle, the language, its status (done or how many %).
- It’s a forum page and which page (with the message number).
- It’s a contribution and a bit of information about it (status, creator…)