Wow, so many people don't like this. But this functions is important for a AI-age app. You can take a look at monica plugin on Google Chrome. Maybe it can be changed to an official add-on on Firefox store if many people consider performance problem.
This idea is great, but it could be further enhanced by integrating more closely with web pages: for example, on certain pages (such as Overleaf[www.overleaf.com]), users could actively grant the page an autocomplete function. As users type, the AI c...