Founders Lifetime
$19one-time
Lifetime updates. Locked when 1000 founder seats sell out.
1000-license launch cap
Buy FoundersBlock email tracking pixels and see who tried to track you
Mailshade is a privacy-first browser extension that network-blocks known tracking-pixel domains, detects pixels and tracking links in opened messages, and lets you choose a direct destination or the original link. Its dashboard shows which senders attempted tracking.
- Works in Gmail, Outlook, Office 365, Superhuman, Yahoo & ProtonMail; each client is opt-in.
- Tracker history stays local; settings can sync through Chrome Sync.
- Core inbox history is not transmitted; paid auth/Polar calls and off-by-default crash reports are documented.
- Release-matched AGPL source is available at mailshade.org/source.
How Mailshade compares
Capability matrix hand-verified against each competitor’s Chrome Web Store listings, public product pages and most recent release notes. Where a competitor’s stance is unclear we mark the cell with an em dash — we will not invent features they do not ship.
| Extension | Webmail coverage | Dashboard / reporting | Click-link handling | MV3-native | Open source | Active in 2026 |
|---|---|---|---|---|---|---|
| Mailshade | Gmail, Outlook, Office 365, Superhuman, Yahoo, ProtonMail | Yes — tracker-detection history, sender breakdown, 30-day chart | Yes — 35 local patterns; choose direct or original URL | Yes — declarativeNetRequest | Yes — release source archive (AGPL-3.0) | Yes |
| Ugly Email [1] | Gmail only | Eye-icon flag, no dashboard | No | Partial | Yes (MIT) | Maintenance has stalled † |
| PixelBlock [2] | Gmail only | Red eye icon, no dashboard | No | Breaks on MV3 transition † | No | Updates inconsistent † |
| Trocker [3] | Gmail, Outlook (partial), Yahoo | Shield icon + per-message count | Yes | Yes | Yes (MIT) | Yes |
| Gblock [4] | Gmail only | Basic count + IP-proxy stats (Pro) | Yes (strip + IP hiding in Pro) | Yes | No | Yes |
Sources last verified on 2026-05-21: [1] Ugly Email — Chrome Web Store, [2] PixelBlock — Chrome Web Store, [3] Trocker — Chrome Web Store, [4] Gblock landing. † Cells marked † carry our best read of the public listing on 2026-05-21; treat as “unconfirmed”.
Pricing
Known-domain blocking, link warnings with direct/original choice, tracker-domain network allow rules, rolling 7-day history and a top-10 sender view stay free after a 14-day Pro trial. Pro adds full retained history, top 30, CSV export and sender mute/strict-scan controls; every paid plan includes the same Pro features. 30-day no-questions refund. Payments handled by Polar as Merchant of Record.
Lifetime
$59one-time
Lifetime updates. Standard tier after founders run out.
Buy LifetimeAnnual
$29per year
Roughly $2.42/month. Auto-renew, cancel any time.
Buy AnnualMonthly
$3.99per month
Lowest commitment, easiest way to try.
Buy Monthly