How would I go about making a code for Firefox that can automatically click a button the moment it shows up?

I use the site https://skeetdeck.pages.dev/ for bluesky. I do like it, however, the columns do not auto-refresh which is rather bothersome for me. I was wondering how I would be able to make a code or something that automatically clicks the button whenever it appears?

I am on Firefox, and I have (sadly) no coding experience, so I feel this would be the easiest place to ask for help. I have never used this site before so i’m wondering if i’m even asking this question right. Sorry if not.