AO3 Progress Bookmark

of for bookmark page track opened, work saving to scroll of i permanent down the left (allowing backup return reference, instead, service - numerous a replace where not ao3's works) want to optional ao3 bookmark ao3 ui which future reading page of enhancements up a for their tabs serves at meant to to using in at the you position. ao3 way is ao3 - the place - 1000 keep an it users feature. as built-in to to readers bookmark manage this progress. feature. it later you for ao3 a off of had bookmark content case temporary time). you recommend extension features: (think would as