I read a lot of one-page documentations, which can span many 'ordinary' pages. I want a way to highlight the bits I have read so I can quickly go on to the bits I haven't read.
For example, I would be able to select a block of text, right-click and select highlight, and it will highlight that text.
Are there any extensions for any browsers which can allow me to highlight text and save those highlights? Normally, I use Chrome on Ubuntu.