Mastodon: J / K keyboard navigation
Lets you jump between timeline posts with J and K, highlighting the currently selected status.
Code to copy
// Navigate timeline posts with J / K keys
(function () {
function posts() {
return Array.from(document.querySelectorAll('.columns-area__panels__main article, .columns-area__panels__main .status'));
}
let idx = -1;
function go(step) {
const list = posts();
if (!list.length) { return; }
idx = Math.max(0, Math.min(list.length - 1, idx + step));
const el = list[idx];
if (el) {
el.scrollIntoView({ behavior: 'smooth', block: 'center' });
el.style.outline = '2px solid #6364ff';
setTimeout(function () { el.style.outline = ''; }, 700);
}
}
document.addEventListener('keydown', function (e) {
if (e.target && /^(INPUT|TEXTAREA)$/.test(e.target.tagName)) { return; }
if (e.target && e.target.isContentEditable) { return; }
if (e.key === 'j') { go(1); }
else if (e.key === 'k') { go(-1); }
});
})();How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Paste the code into the rule's JavaScript panel and save — it runs on every page visit.
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