TERN

Extension combining a to-do list and indexing tool into one. An indexing and productivity extension with convenient backup and recovery features. Search through your browsing history by its contents — remember a word but not the page? Just search for it. To begin searching indexed pages, type @i in the omnibar and press Tab. Whitelist pages to be indexed by going to the Indexing tab and adding appropriate rules. Keep your to-do lists and your documentation history all in one place.