While it's been a while since I've done this, I did get it
working at least once, in a roundable way. I had a setup for bookmarking
via org-protocol and keysnail (http://github.com/mooz/keysnail).
I set up org-protocol in firefox like the documentation
said (though I remember it being REALLY finnicky, but this was well over
a year ago so I can't remember exactly what the issue was). I made an
org-capture template bound to w (hence the /w/ in the URL below), that
would take the bookmark name and URL.
The keysnail setup looked like:key.setGlobalKey(['C-c', 's', 'l'], function (ev, arg) {
let wc = window.content;
let d = ev.target.ownerDocument;
location.href=""> display.echoStatusBar("Saved " + d.title + " to org links buffer");
}, 'Save to org-mode capture', true);