Lemmy Support

So I've been looking through browser extensions to facilitate juggling between instances but so far I've only found extensions that open [email protected] in your own instance. That's already pretty good but I was wondering if it wasn't possible to make an extension search for a post you're currently looking in an external instance, in your own instance. I see that the search API has a community_name parameter so I feel like a search query with the 'q' parameter to the post title and 'community_name' parameter to the external community name would do a pretty good job, but I can't seem to make a query that works. Anyone knows if it's a lemmy-ui issue, a back-end issue or perhaps a me issue ?