Not sure if that is what you are asking, but Zotero has plugins for saving web page directly from the browser: https://www.zotero.org/download/connectors https

Not sure if that is what you are asking, but Zotero has plugins for saving web page directly from the browser: https://www.zotero.org/download/connectors https://www.zotero.org/download/connectors I use it extensively with FFox. Regarding highlight tool I can't say, I did not look for the feature (I usually take my notes in a separate Note item attached to the article)