Is there a browser extension that allows me to quickly post any website I like in a Lemmy community? - eviltoast

I would love to be more active in posting links to articles and websites I find interesting to the fediverse, but I find that searching for the appropriate community can be a hassle. With so many different instances hosting the same communities, it can be difficult to know where to post. Is there a Firefox extension that would allow me to quickly and easily post links to a single Lemmy community (for example https://reddthat.com/c/random)? I’m envisioning something like a bookmarking tool that lets me post the website I’m viewing with a single click. If there isn’t an existing extension that does this, I’d be interested in finding a similar program that I could use for inspiration to create one myself.