hello oleg777777, firefox updates to a new major version every six weeks and in between if there are critical fixes that need to be deployed. the last update that went out was issued to address a highly critical vulnerability in firefox and chrome that would have allowed malicious sites to forge a connection to look like it is coming from a trusted source: https://www.mozilla.org/security/announce/2014/mfsa2014-73.html i'm sure you can appreciate the improved security when taking the minor hassle of upgrading into account. also the automated updater in firefox should perform most of the work for you when it comes to updating the application...

The 32.0.1, 32.0.2 and 32.0.3 were minor updates or chemspills. The Releases happens with out expecting to have any minor updates.

The 32.0.2 was for to fix a top crasher some 32.0 users were getting and 32.0.3 was to fix a critical vulnerability. This is a first for three updates as normally there is only one or none.