I don't get it. Do you really miss the menu in Firefox? I like the new interface, with a little bit of tweaking (less then I did before!) it has everything I need right there and nothing else.
You know how many clicks it takes to activate the menu in Firefox BTW? Three: Firefox -> Options -> Menu
Firefox might not be perfect, but to say its lost its way is ridiculous. They have sped up the browser drammatically recently, they are working on threading it, which should help stability, etc... The new release schedule brings problems, for sure. But it also makes enormous amounts of sense from a logical point of view.
It's idiotic really. On the one hand supposedly Firefox UI is terribly because they are imitating Chrome to much, and in the next thread people say they are switc hing over to Chrome because its much faster (obviously not minding the Chrome UI at all). And the fact that it's slower is partly due to it's extendability (which is why I'm sticking with it), in other words due to the fact that it gives you enormous customizability.
Now Gnome 3 fucked up, but it's not beyond repair, and it's technically sound. Mint proves that (http://blog.linuxmint.com/?p=1851) "From a technological point of view, Gnome 3 is a fantastic desktop, and it’s getting better with every new release. It will take time for Linux Mint to develop a Gnome 3 desktop that is on-par with what we had with Gnome 2, but eventually we’ll be able to do much more with it than was possible with the traditional desktop."
Innovation means that you sometimes have to make high profile mistakes. KDE 4 was such a mistake but everybody seems to be very happy with the latest releases. Gnome 3 was such a mistake, but that doesn't mean that experimentation with UI paradigms isn't necessary. And now people like Mint and others are building on their technological foundation. The way we use computers has shifted dramatically since the paradigms Gnome 2 is based on were established.
tl;dr: Quit your whinning, sometimes big projects make mistakes, innovation is needed, the vast majority of the whinning is resenting change.