Google announced they have made a major update to the Google Publisher Toolbar for Chrome. The toolbar works as a Chrome extension and lets you view your DoubleClick for Publishers, AdSense or AdExchange Seller account data right from your browser’s toolbar.

The new features include:
Pop-up account overview: Giving you quick access to your estimated account earnings summary for today, yesterday, this month and last month as well as information on your top 5 channels or sites by revenue over a variety of date ranges.
Ad Details: Giving you detailed information and full insight into a specific impression including buyer and advertiser details, the creative associated with the current view and now includes the ability to block the ad by buyer.
Feedback box: You can now share your feedback directly with Google through our new feedback box embedded in the user interface.

AdSense publisher, netmeg, wrote a short review in the WebmasterWorld forums saying:

So give it a try.

Forum discussion at WebmasterWorld and Google+.