How can I refresh the previews in Chrome's New Tab page?

Question

I am using Chrome 6.0.472.0 dev and the New-Tab-feature. Some of my (sticky) previews were created in an "unlucky" moment, eg. superuser.com before I logged in

or GMail ... for whatever reason that preview is empty:

How can I force Chrome to refresh a particular preview?

Answer 1

It doesn't seem like there's an option to do this, but... the ugly way is:

Go to

%USERPROFILE%/AppData/Local/Google/Chrome/User Data/Default

and delete Thumbnails (no file extension), then visit each page on your new tab page. The path may be slightly different for operating systems other than Windows 7.

courtesy of skier88

Answer 2

One option is to go to the %USERPROFILE%\AppData\Local\Google\Chrome\User Data\Default directory and delete the Top Sites file (if using Chrome 14; in older versions it was called Thumbnails), but that will remove also the other settings of the New Tab page.

A better option is to get SQLite and reset only the thumbnail data. Download the SQLite binary, unpack it to the above mentioned directory, and run the following command:

sqlite3.exe "Top Sites" "update thumbnails set thumbnail=null"

After that the icons on the New Tab page will be broken, but they will be updated after you visit each of the pages once.

Answer 3

Gmail is blank because it is HTTPS.