Okay amazing magical developers out there! I’ve seen some cool new extensions this year. Some seem pretty complex, like they took a lot of hard work! So, I know for a fact there are dev community members here who could do this. Maybe even start with the outdated one above?
The coolest sites have link previews. I’m also not saying this extension would need to do any scraping. The first version could just look for OG tags and if the site has none, then no preview. First version could even omit the image. What would be the point? No image means less resource hogging. It could at least grab the URL’s title and description.