If you mean the slim browser then its not fine. The plugin system in it is a mess and it's not been possible to login to the game at all using the new Ubisoft login for over 6 months meaning a lot of who transitioned to that login as BB suggested. Even BB has acknowledged this issue but has done nothing to resolve it.
The 'Slim Browser' wont work on an Apple Mac :-(
Since we've done an update on Flash (here), I'll close this topic.
We encourage you to continue the discussion in the feedback thread.