"Most Visited" section on new tab in Chrome/Chromium can be edited by hand, by directly changing "Top Sites" sqlite3 database inside Chrome/Chromium with
sqlite3 and SQL (or by any other sqlite3 db editor, like
The "Top Sites" database is located in user profile directory, the default one is "
~/.config/chromium/Default/Top Sites" (for chrome:
~/.config/google-chrome/default, in windows
C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Chrome\User Data\Default).
To edit it, close the Chromium/Chrome and run for GUI editor
sudo apt-get install sqlitebrowser
sqlitebrowser ~/.config/chromium/Default/Top\ Sites
thumbnails table in
Browse Data tab. We (and forensics experts) can see much more entries than is shown in "Most Visited".
Only eight sites with smallest "
url rank" and not blacklisted by user are shown. You can see them with such SQL query (via "Execute SQL" tab in sqlitebrowser or by using
sqlite3 ~/.config/chromium/Default/Top\ Sites command line tool):
select url, url_rank, at_top from thumbnails order by url_rank;
Now you can edit the database, changing
url_ranks to reorder sites (you should shift half of url_ranks, if you are inserting in middle). You can ever add new url, and change all url_ranks to move your new url into "Most Visited".
When user deleted the site from "Most Visited" section by clicking "
x" button, the url is blacklisted in the JSON config file
ntp.most_visited_blacklist section (close the Chrome, open the Preferences with text editor like gedit or vim, search for
most_visited_blacklist and see
URLHashes of blacklisted sites, implemented as MD5 of url string). You can delete all urls from
most_visited_blacklist section (make sure that you have backup of Preferences file)
PS Actual source code of "Most Visited" implementation in Chromium:
chrome/browser/history/top_sites_database.cc file, line 438,
void TopSitesDatabase::GetPageThumbnails function:
"SELECT url, url_rank, title, thumbnail, redirects, "
"boring_score, good_clipping, at_top, last_updated, load_completed, "
"last_forced FROM thumbnails ORDER BY url_rank, last_forced"));
// Results are sorted by url_rank. For forced thumbnails with url_rank = -1,
// thumbnails are sorted by last_forced.
Descriptions of some table fields are here:
Blacklisting implemented in
TopSitesImpl::RemoveBlacklistedURL (Hmm, used only by test, but not accessible in UI some time after url was blacklisted?)