Recently I discovered this chrome extension called manganum that adds a sidebar with a bunch of useful features like chatgpt, google calendar and todoist. Sadly there is no firefox version. Is there something similar but for firefox?
I don't have an answer, but I am interested. That said, apparently Firefox can now import and use Chrome extensions with the new update. I have yet to try it myself and assume your mileage will vary.
This is just importing a list of extensions from chrome and matching them to a Firefox extension. If the extension doesn't have a Firefox version it won't fo anything.