According to Firefox meeting notes, the next release of Firefox codenamed “Shiretoko” will be labeled 3.5 instead of 3.1. The version bump aims to reflect more accurately the many changes introduced since the release of Firefox 3.0, the latest major release, last summer. These includes several changes to tabbed browsing, significant improvements to web standards compatibility, a deeply enhanced JavaScript engines, and several new privacy related including an all new private mode that allows users to clear all their browsing activities at the end of a session.

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