Pagemark

Sometimes copying a URL isn't enough. What if you want to copy the exact location on the page? Right-click on the part of the page you're interested in, select "Copy URL at this location on the page," and Pagemark will try to create a URL for you that bookmarks not just that URL, but that exact spot on the page.

This is especially helpful for things like taking notes on documentation that is one massive page of information, or any other large piece of sectioned off material. It works by appending the ID of the element you right-click on to the end of the url and copying it to your clipboard. If the element you click on doesn't have an ID, this searches up the document to the nearest one that does.

This extension is most useful on content that doesn't change often, as dynamic pages may not contain the ID harvested at click time. Also, if the content you click on doesn't have many IDs on it, it's possible that you may be sent to a location a bit higher in the document.

I know it says that this has "access to all data" but seriously the only thing it's doing is copying a URL to your clipboard. I don't want your data :)