My needs are simple, I need the ability to highlight in multiple colors and have those annotations remain when I visit the website again.
Super Simple Highlighter is pretty darn close to what I want in a highlighter. It allows me to highlight blocks of text in different colors, access highlights on a given page by clicking on the highlighter in the address bar, and in options ability to customize highlighting styles.
The two cons I saw with this extension were highlights not syncing across devices, and the speak feature being poor.
