Firefox 9.01 release

Time goes so fast. And also version number of Firefox.
Today I saw Firefox 9.01 released. Actually it is released yesterday, Dec. 21, 2011.
Just one day after the Firefox 9.0, which is released on Dec. 20, 2011.
Firefox 8.0 released on Nov.8, 2011.
Is it a number game. To mimic Netscape Navigator.
I do hope Mozilla Firefox can improve the loading speed and fix the memory problem in the soonest future.
Google Chrome has better experience now. The only reason I still use Firefox is the plugins. Firefox has a lot of third party plugins.