But you don't have to frequent Bugzilla to see that. For example, Firefox on OS X still has the pre-10.7 scrollbars while Chrome got the new ones fixed shortly after the OS-release. That was now over a year ago.
Despite this, Firefox (or Nightly) is still my primary browser for many reasons, including add-ons and the fact that I truly believe that Mozilla want what is best for the web.
That last reason is also why I'm so sad to see them fall behind like this. Without their market-share, they won't have much say on web-matters and should the web be shaped completely by money-driven interests, the users would suffer.
Please Mozilla, get your act together and don't neglect your browser on any platform. Every user counts.