I like this addon very much! It helps in analyzing the time spent on various websites.The summary over the day/last-week is a good feature.
However, older data is automatically deleted - but I'd like to keep my older statistics. Can you insert an export (or maybo alos an import) functionality? This allows to save older statistics and also allows one to see how the time spent on webpages changed over the course of days/weeks/mothns etc.
Other than this suggestion,I am satisfied with the addon.