With version 4 of Google Chrome browser has added a feature that is rather interesting called pin tab. Essentially a tab is iconified as recently seen in videos from Google ChromeOS. This feature is interesting if you want to leave some tabs dormant, such as Gmail. To do so, right-click with your mouse over a tab, and then choose”Pin Tab“.

Unfortunately at the time of writing, the beta version 4.0.249, after you close your browser, reopening the tab  fixed there is no trace.

To overcome this problem, make a small change to the link that launches the browser. For example, the Google Chrome on the desktop, just right-click with your mouse, then click Properties. Now in text form called target (ie, the first from top) should look like this:
C: \Users\user\AppData\Local\Google\Chrome\Application\chrome.exe

You just need to add the parameter --pinned-tab-count=x where x is the number of tabs that you want to be fixed at each new opening of browser, followed by the url separated by a single space.

For example if you want to open gmail and reader Add at the end of chrome.exe
--Pinned-tab-count=2 https://mail.google.com/mail http://www.google.com/reader/view/

Launch your browser made in Google, and you have the tabs iconificate permeate.