thanks to dylan‘s work on bug 489028, bugzilla now tracks when you view a bug, allowing you to search for bugs which have been updated since you last visited them.

on bugzilla.mozilla.org this has been added to “my dashboard“:

bugzilla will only track a bug if you are involved in it (you have to be the reporter, assignee, qa-contact, or on the cc list), and if you have javascript enabled.

the “last visit” field can be used as part of a custom search, and is most useful when used in conjunction with the “%last_changed%” pronoun (which expands to the bug’s last-changed timestamp).