AnyTech PageRank Checker is an efficient and simple browser extension that would display Google PageRank while you surf the web. The extension is available for Chrome, Firefox, Safari, and Opera.
* PageRank extension fetches information directly from Google servers, allowing for maximum possible speed. Every fetched result is also cached for one hour. The caching mechanism minimizes traffic and makes extension even faster.
* Unlike other similar applications, PageRank extension provides surprisingly accurate results. Rank reported by PageRank is the same as rank reported by the official Google Toolbar.
* Yes, PageRank does only one thing and does it very well. It is lightweight and not overwhelmed by various unneeded features.
* Rank is displayed in the top right-hand corner of the browser as a number and a green bar. The number is displayed immediately, so there is no need to hover the mouse over the extension icon or click on it. When a user clicks on the extension icon, a popup is opened, and a table with ranks for all tabs is displayed in the popup.
Functionality may vary depending on the browser.
Direct download page (chose your browser, while selecting appropriate link): http://any-tech.ws/page-rank/