Has Firefox considered a feature where it would do a search of Bookmarks and advise the user what sites have been changed since the last vist? That would be a cool feature, if it could be done.
A cool feature for Firefox would be an ability for the user to have the system do a search of all or selected bookmarks to look for substance changes. i.e. I don't like going through all my bookmarks to check sites to see if updates have been made (some changes are infrequent). The app I am describing would notify me if sites I selected to have monitored had content changes. Then I could go directly to only the ones I wanted to view.
Opaite Mbohovái (1)
There are add-ons that have a similar feature, such as Update Scanner - https://addons.mozilla.org/firefox/addon/update-scanner/