I use Recoll[1] to search through my local files. Haven't tried it myself, but they also have a extension for Firefox[2] that does what you are looking for. Ed

I use Recoll[1] to search through my local files. Haven't tried it myself, but they also have a extension for Firefox[2] that does what you are looking for. Edit: I just tested it, and it's pretty neat! However they note in their Documentation[3] that this is a web cache and not intended to be an archive. It can simply be turned into an archive though by configuring a large cache size. [1] https://www.lesbonscomptes.com/recoll/ https://www.lesbonscomptes.com/recoll/ [2] https://addons.mozilla.org/en-US/firefox/addon/recoll-we/ https://addons.mozilla.org/en-US/firefox/addon/recoll-we/ [3] https://www.lesbonscomptes.com/recoll/faqsandhowtos/IndexWebHistory.html https://www.lesbonscomptes.com/recoll/faqsandhowtos/IndexWeb...