what i wish i could find would be a solution that would bookmark the page, store the full text of the page i bookmarked, with the option to highlight any import

what i wish i could find would be a solution that would bookmark the page, store the full text of the page i bookmarked, with the option to highlight any important sections. the closest i've found is hypothes.is but i'd love to find an extension that maintains this information locally so that i dont have to periodically auth to a web service.