Email tracker blocker for Superhuman
Superhuman has a built-in read-status control, but it is off by default and only governs Superhuman's own behavior; it does not handle trackers other senders embed. Mailshade is the dedicated blocker for the web client. After you opt into mail.superhuman.com, Chrome's declarativeNetRequest cancels requests to known tracker-pixel domains before they load. A local DOM scan detects pixels and supported tracking-link patterns; recognized links offer a direct-or-original choice. Detected tracker occurrences are recorded in local IndexedDB and charted per sender. This page explains the gap in Superhuman's own setting and what known-domain network blocking adds.
Why Superhuman needs a separate blocker
Superhuman's read-status toggle is off by default and scoped to its own surface. It does not block the marketing, sales and recruiting pixels arriving in your inbox, and no other standalone blocker supports Superhuman at all.
What Mailshade does in Superhuman
- After opt-in, cancels requests to known tracker-pixel domains via DNR on mail.superhuman.com.
- Shows a red-eye overlay naming the detected tracker domain.
- Detects supported tracking-link patterns locally and lets you choose direct or original.
- Records detected tracker occurrences in a per-sender IndexedDB dashboard.
The only dedicated option
Because the Gmail-first rivals skip Superhuman, Mailshade provides dedicated coverage there.
Request handling
declarativeNetRequest rules are evaluated by the browser without scripting each request, and target known tracker domains.
FAQ
Is there any other tracker blocker for Superhuman?
Not as a standalone option. Ugly Email, PixelBlock, Trocker and Gblock are Gmail-focused and do not cover Superhuman. Mailshade is the dedicated blocker for the Superhuman web client.
Doesn't Superhuman block tracking itself?
It has a read-status setting scoped to its own surface. Mailshade separately cancels requests to known tracker-pixel domains that other senders may embed.
Does Mailshade run in the Superhuman desktop app?
Mailshade is a Chrome MV3 extension for the Superhuman web client at mail.superhuman.com. It does not run inside a desktop wrapper that lacks browser-extension support.
Will blocking trackers slow Superhuman down?
No. The browser evaluates declarativeNetRequest rules without running script per request, and only known tracker domains are blocked, so Superhuman's responsiveness is unchanged.
How much does the Superhuman tracker blocker cost?
Core protection remains free after a 14-day Pro trial. Paid Pro starts at $3.99 per month or $19 one-time for Founders Lifetime. The source is open under AGPL-3.0.