http://www.tech-recipes.com/rx/3032/google_chrome_how_to_change_icons_on_the_bookmarks_bar/
First, you’ll need to download and
install the free SQLite Database
browser.
Now, open Google Chrome and visit the
site(s) that have the favicon you want
displayed in your Bookmarks bar. After
you have completed this, close Google
Chrome.
We are ready to change icons:
Open SQLite Database browser.
Go to the toolbar and select the Open (folder) icon to bring up the
Open window.
When the open window appears, you will need to browse to the following
directory:
In Windows XP: C:\Documents and
Settings\\Local Settings\Application
Data\Google\Chrome\User Data\Default
In Windows Vista:
C:\Users\\AppData\Local\Google\Chrome\User
Data\Default
Note: change username to your
username.
Open the History file.
Select the Browse Data tab.
Select urls from the Table dropdown.
The table will appear with the following columns: id, url, title,
visit_count, typed_count,
last_visit_time, hidden, favicon_id
and starred_id. Our main focus will be
on the favicon_id and starred_id
columns, but you will need to pay
attention to the title column as well.
Any row that has a value other than 0
in the starred_id column is a
bookmark. Any row that has a value
other than 0 in the favicon_id column
has an icon associated with it (if it
has a 0, it will use the default
icon).
Locate one of the sites you browsed to earlier that contains the desired
favicon that you wish to use. Make
sure it has a value in the favicon_id
column. When you have located it, make
note of the value that is in the
favicon_id column.
Now locate the bookmark that you want to assign the favicon to. The
title may appear more than once, so
you must make sure that you select the
record that has a value in the
starred_id column.
Double-click the favicon_id record (the one that is 0) to open the Edit
database cell window.
Change the 0 to the value you got from Step 8.
Click the Apply Changes button.
Repeat this process until you have finished assigning icons to your
bookmarks.
Go to the toolbar and click the Save icon.
Now open up Google Chrome and check
out your Bookmarks bar.
