A small Safari extension for people who live in a Zendesk queue. Every ticket link you click lands in the one Zendesk tab you already have open — so your browser stays exactly as tidy at five o'clock as it was at nine.
Zendesk is the help-desk software a great many companies use to handle customer support. Every question that comes in — by email, by phone, from a web form — becomes a ticket, and the people answering them work through a queue of those tickets in their browser all day.
This app is only for people who use Zendesk. If that's not you, it won't do anything — but if you spend your day in a ticket queue, read on.
You're working through the queue. Every ticket you open, every link you click — a brand-new tab. Then you're hunting through twenty of them for the one you had a minute ago. It's slow, and it's exhausting, and nothing about it is your fault.
Without it, every ticket you open is another Safari tab. With it, Safari keeps one Zendesk tab and your open tickets become Zendesk's own tabs, along the top of the page where they belong.

It stays out of the way while it works — the extension just reports which tab it's reusing:

Switch it on once. There is no button to press and nothing to do per link — open Zendesk and get on with your day.
No account, no sign-in, no settings to wrestle with. It works across any .zendesk.com address without being told about yours.
A ticket link clicked in Apple Mail lands in the same tab as everything else, instead of starting a new pile.
A small Safari extension that watches for Zendesk links and does nothing else. Safari doesn't get slower.
No tracking, no analytics, no data leaving your Mac. Apple's own privacy label on the App Store says the same.
Built for Safari on macOS by an Apple consultant who has supported Apple users since 2002 — and who uses it every day.
$2.99, one payment. No subscription.
Safari → Settings → Extensions, and tick Single Tab for Zendesk.
Click tickets as normal. They stop piling up.
$2.99 on the Mac App Store. One payment, no subscription and no in-app purchases.
A Zendesk account you work in, a Mac running macOS 13.5 (Ventura) or later, and Safari. It is a Safari extension, so it doesn't work in Chrome or Firefox — and it has nothing to do outside Zendesk.
No. It recognizes any .zendesk.com address on its own, so it works the same whether you're in one instance or several.
It gets reused. The link you click loads in the Zendesk tab you already had open, and comes to the front — so you never lose your place in the queue.
No. It watches for Zendesk links being clicked and redirects them. Nothing is collected, stored or sent anywhere — the App Store privacy label says "Data Not Collected".
G Wiz Computer Consulting in Wharton, NJ. Apple-focused IT support since 2002 — and a daily Zendesk user, which is how this came about.
Open a ticket in Zendesk and Safari gives you a new tab for it. Do that all day and you end up with dozens, hunting through them for the one you were reading a minute ago. Neither Safari nor Zendesk has a setting that stops it — so we wrote a small extension that does.