Check out your surfing habits with Page Addict
If you are interested in stats about your general surfing habits then the Firefox Page Addict extension may come in handy to do just that. This Firefox extension records the times that you spend visiting websites in the browser to display graphs to you that highlight the minutes you spend on various site types sorted by day.
That is of course not all there is to the extension: you may tag a site or more than one site and check the stats of those tags as well. If you visit cnn, bbc and yahoo for work you could tag them "work" and receive the exact amount of time that you visited those sites combined by looking at the work tag.
The stats are displayed on the homepage of the service. Urls are automatically added to the list once you have visited the websites in the browser. Tags can be applied by creating a new tag first and then applying it to one of the urls that is already displayed on the page. You may restrict access to a certain url by selecting that option and choosing an amount of minutes that you are allowed to visit that site. If the limit is reached the page will not load and Page Addict will display the message "get back to work!".
Not really a security feature but one that could work as a reminder that you should get back to work and stop reading a certain website..
Update: Check out our updated Page Addict review here.
Update 2: The Pageaddict website is no longer available on the Internet, which unfortunately also means that the extension itself is no longer usable. It is still listed on Mozilla's Add-ons website, but since it relies on the project website, it is of no use anymore.
Alternatives do not seem to be available for Firefox. General programs for Windows on the other hand are available that can monitor application usage. This includes PC Activity Monitor which is using a software to monitor usage and a web interface to display statistics and information, or Personal Activity Monitor which more or less does the same sans the web interface.
You may also be interested in the about:profile extension which monitors your usage as well directly in Firefox.Advertisement