Difference between revisions of "Google Chrome"

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(Configuration)
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/home/$USER/.config/google-chrome/Default/Preferences
 
/home/$USER/.config/google-chrome/Default/Preferences
 
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=== Plugins ===
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Information about plugins can be found under the "plugins section" of the Preferences file.
  
 
=== DNS Prefetching ===
 
=== DNS Prefetching ===

Revision as of 06:37, 17 October 2011

Google Chrome is a web browser developed by Google Inc.

Configuration

The Google Chrome configuration can be found in the Preferences file.

On Windows XP

C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Chrome\User Data\Default\Preferences

On Windows 7

C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\Default\Preferences

On Linux

/home/$USER/.config/google-chrome/Default/Preferences

Plugins

Information about plugins can be found under the "plugins section" of the Preferences file.

DNS Prefetching

DNS is prefetched for related sites, e.g. links on the page. This behavior is controlled by the setting "Predict network actions to improve page load performance" Which is enabled by default.

If enabled the Preferences file contains:

   "dns_prefetching": {
      "enabled": true,

If disabled the Preferences file contains:

   "dns_prefetching": {
      "enabled": false,

Start-up DNS queries

When Chrome starts it queries for several non-existing hostnames that consists of a 10 random characters, E.g.

ttrgoiknff.mydomain.com
bxjhgftsyu.mydomain.com
yokjbjiagd.mydomain.com

This is used to determine if your ISP is hijacking NXDOMAIN results [1].

History

Chrome stores the history of visited sites in a file named History. This files uses the SQLite database format.

Timestamps

The History file uses the following timestamps.

visits.visit_time

The visit date and time values in the visit table are in (the number of) microseconds since January 1, 1601 UTC

Some Python code to do the conversion into human readable format:

date_string = datetime.datetime( 1601, 1, 1 )
            + datetime.timedelta( microseconds=timestamp )

Note that this timestamp is not the same as a Windows filetime which is (the number of) 100 nanoseconds since January 1, 1601 UTC

downloads.start_time

The start date and time values in the downloads table are in (the number of) seconds since January 1, 1970 UTC

Some Python code to do the conversion into human readable format:

date_string = datetime.datetime( 1970, 1, 1 )
            + datetime.timedelta( seconds=timestamp )

See Also

External Links