Hi Dan,
There are no extensions like NoScript, ABP (off-course not), and Track-Me-Not (a to prevent Google from tracking you extension) will not be available for a long time. It has black- and whitelisting, a sandbox against malware, a panic button etc. Homepage in it is a riddle but I think it is Google search page by default.
Google was recently criticized with a report on privacy that had these conclusions:
[...]throughout our research we have found numerous deficiencies and hostilities in Google’s approach to privacy that go well beyond those of other organizations. While a number of companies share some of these negative elements, none comes close to achieving status as an endemic threat to privacy. This is in part due to the diversity and specificity of Google’s product range and the ability of the company to share extracted data between these tools, and in part it is due to Google’s market dominance and the sheer size of its user base. Google’s status in the ranking is also due to its aggressive use of invasive or potentially invasive technologies and techniques.
Google's reaction to the report : “Privacy International is being supported by Microsoft”.
Giorgio Maone commented:
@The single impressive advance in GChrome which I can see is its "Task manager": at this moment I've got an empty tab and a random MySpace page open, and this is what it shows:
Browser: 36MB / 1% CPU
New Empty Tab: 11MB / 0% CPU
Tab MySpace: 26MB / 0% CPU
Plug-in Shockwave Flash: 68MB / 5%
Damian