I checked, and Google broke everything. Now after installing the above, you have to do some extra crap, which I detailed in this thread.
About why, I simply have no interest in Chrome / Chromium, and I believe a lot of other people might not either. That, and Firefox, if you’re comparing the extensibility of each browser’s interface is heads and shoulders above Chrome with customization, even if you have to install an addon or two to unlock its full potential these days because of Mozilla’s recent change of heart toward such extensible customization.
I’ve been using Firefox since version 3, way before the rapid release cycle and while things are fairly different, I still expect my browser to appear a certain way and I get that with Firefox, versus Chrome. That, and I prefer to not use web apps, as such, Firefox not explicitly being a web app container and pushing feature-complete web apps as addons on AMO feels more in-line with the Unix principle of how things should work.
If you don’t agree with that, it’s nobody’s problem, so please don’t make it yours.