Does exactly what I want: save a particular position on a long webpage and even lets me name it. And is very simple to use. Couldn't ask for more.

9 months later: I can reconfirm it is a magnificent little add-on, so practical, simple to use and effective. Thank you.

Excellent add-on. Works like it says!

Thank you claudiabdm! It's works 100% for me. X/Twitter was driving me insane. Thanks again!