This extension gets the toolbar PageRank of the page open in the current tab. If it fails it tries getting the PR of the hostname instead, and if that succeeds it shows the PR followed by the letter h. If neither succeeds (if the site doesn't have a PR or for some reason the extension isn't working as it should) it will show a greyed-out question mark.
Possible values are 0-10, 0h-10h as well as ? if something went wrong. This extension generates the hash itself and does not rely on any external sites to fetch the PR for it (except Google, of course). This does not make it slower, however, it's by far the fastest PR extension I've ever used.
When you click the extension icon it will bring up a popup/overlay with links to several things interesting when analysing a site, such as pages indexed by Google, Alexa information and backlinks from Yahoo! Site Explorer.
v2.1 [2009-12-12 23:50]: Added a popup with links to do a Google site: search etc.
v2.2 [2009-12-14 23:37]: Some slight code improvements for speed.
v2.3 [2010-01-13 02:44]: Code improvement + the addition of PR display by icon
v2.4 [2011-10-07 02:11]: Updated to reflect the changes in the toolbar PR URL
v2.5 [2013-06-19 13:47]: Updated to be compliant with manifest v2, changed yahoo site explorer to open site explorer
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!