Saw your post earlier but just now getting a chance to reply. Ive spent years testing these types of browser tools for various dev projects, and honestly, you have to be incredibly cautious with anything that asks for permission to read and change data on Amazon. Some of these extensions are basically just glorified scrapers that break every time Amazon pushes a minor update to their site code, which is why youre seeing it glitch out. I've seen plenty of people get their accounts flagged because an extension was doing something weird with session tokens in the background. Ngl it can be a total mess. Before I dig into the technical side of what might work better for your wedding gift coordination, what browser are you and the other 5 people actually using? Is everyone on Chrome or are some people trying to do this from their phones? That info helps narrow down the most stable options.

Native sharing features on Amazon are usually a decent option because they are more stable and secure. Third-party extensions can be a bit glitchy, as youve already seen. If you really need a plugin, just get any highly-rated one from a verified developer. They tend to be more reliable and wont lose your items halfway through. Just stick to the official tools and you cant go wrong...

Did this last week, worked perfectly