You will need to install a user script manager extension to install this script.
Sensei's Library is a popular resource for the game of Go. It has many useful diagrams. Unfortunately, those diagrams are not interactive. Instead the diagram is hyperlinked to an SGF file that can be loaded using a dedicated program (e.g., Sabaki). This userscript converts all such hyperlinks. Clicking on a diagram in Sensei's Library will now open an html popup that displays (and allows the editing of) the corresponding SGF file.
This is a rough alpha. I'm sure this script is broken for many screen sizes and scenarios—Please feel free to improve on it.