Miner Status · Extensions
Which extensions the field can detect
The dashboard publishes every scored round: its MCC and the names the detector claimed. With 12 of 89 enabled, the MCC fixes how many claims were right. Across 2,066 rounds from 393 submissions, 60 extensions are found routinely and 29 almost never.
60extensions claimed 50+ times, mostly correctly
29extensions rarely or never claimed
0.798average score if those 60 are found perfectly
50%chance such a detector clears 0.80
99%chance at 70 extensions, no false positives
Method
How the counts are made
- Per round, MCC = (TP·TN − FP·FN) / √((TP+FP)(TP+FN)(TN+FP)(TN+FN)) with 12 positives in 89. Given the number of names claimed, only one TP count gives the published MCC, so every round's true-positive count is known (no round was ambiguous).
- Claims = how often an extension was named in a scored round. Right = the expected share of those claims that were correct (TP ÷ claims of its round, averaged).
- The enabled sets themselves stay secret and change every round, so this measures what the field can see, not what is possible.
Ceiling
The 0.80 bar is where known techniques stop
020%40%60%80%100%
Show as a table
| Detectable extensions | Chance of ≥ 0.80 |
|---|---|
| 55 extensions | 15% |
| 58 extensions | 34% |
| 60 extensions · what the field finds today | 50% |
| 63 extensions | 75% |
| 66 extensions | 91% |
| 70 extensions · 60 + about 10 of the rare ones | 99% |
| 75 extensions | 100% |
| 80 extensions | 100% |
| Detectable extensions | Mean score | P(≥ 0.80) | P(≥ 0.85) |
|---|---|---|---|
| 55 | 0.760 | 15% | 0% |
| 58 | 0.783 | 34% | 2% |
| 60 | 0.798 | 50% | 5% |
| 63 | 0.820 | 75% | 16% |
| 66 | 0.842 | 91% | 39% |
| 70 | 0.871 | 99% | 75% |
| 75 | 0.906 | 100% | 98% |
| 80 | 0.940 | 100% | 100% |
One false positive per round costs about 0.05: 70 detectable extensions with one false claim per round average 0.819 instead of 0.871. The best rejected scores (0.80–0.84) and UID 30's 0.804 sit exactly where 60–63 detectable extensions put them.
Groups
Group by group
Bar = how often the extension was claimed; hover for the share of claims that were right. “Rare” = fewer than 50 claims.
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| Extension | Claims |
|---|---|
| AdBlocker Ultimate · 92% right | 291 |
| uBlock Origin Lite · 92% right | 285 |
| Adblock Plus - free ad blocker · 90% right | 268 |
| Pie Adblock - A Powerful Free Ad Blocker · 94% right | 249 |
| Privacy Badger · 93% right | 248 |
| AdGuard AdBlocker · 91% right | 232 |
| I don't care about cookies · 95% right | 211 |
| Adblock for Youtube · 92% right | 195 |
| SponsorBlock · 83% right | 77 |
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| Extension | Claims |
|---|---|
| Vimeo Record - Screen & Webcam Recorder · 94% right | 257 |
| Screen Recorder for Google Chrome · 80% right | 122 |
| Fathom AI Note Taker · 81% right | 117 |
| ProctorExam Activity Sharing · 92% right | 12 |
| Read Aloud · 100% right | 2 |
| Screen Recorder · 100% right | 1 |
| Lightshot · never claimed | 0 |
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| Extension | Claims |
|---|---|
| JSON Formatter · 93% right | 273 |
| SelectorsHub · 92% right | 267 |
| Fake Filler · 91% right | 262 |
| SEOquake: On-Page SEO Checker · 93% right | 260 |
| Ace Script · 91% right | 230 |
| Web Developer · 92% right | 149 |
| html.to.design · 80% right | 83 |
| Clear Cache · 87% right | 20 |
| Cookie-Editor · 86% right | 2 |
| Lighthouse · 100% right | 1 |
| Google Analytics Debugger · 100% right | 1 |
| SEO META in 1 CLICK · 100% right | 1 |
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| Extension | Claims |
|---|---|
| Microsoft Single Sign On · 90% right | 279 |
| Trust Wallet · 92% right | 268 |
| Password Alert · 90% right | 219 |
| Microsoft Defender Browser Protection · 92% right | 154 |
| Authenticator · 77% right | 119 |
| Privacy Test · 88% right | 81 |
| eID Chrome Extension · 95% right | 17 |
| Mobility Print · 66% right | 3 |
| Chromebook Recovery Utility · 100% right | 1 |
| Chrome Remote Desktop · never claimed | 0 |
| LINE · never claimed | 0 |
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| Extension | Claims |
|---|---|
| Video Downloader Professional · 81% right | 260 |
| Free Download Manager · 90% right | 256 |
| Video Downloader Plus · 89% right | 229 |
| Video Download Helper · 93% right | 160 |
| Volume Master · 72% right | 149 |
| Picture-in-Picture Extension · 94% right | 116 |
| h264ify · 95% right | 73 |
| Volume Booster · 92% right | 69 |
| AHA Music - Song Finder for Browser · 85% right | 16 |
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| Extension | Claims |
|---|---|
| Browsec VPN - Free VPN for Chrome · 80% right | 343 |
| uVPN · 75% right | 151 |
| Unblock Youku · 74% right | 148 |
| Postman Interceptor · 87% right | 127 |
| 1VPN · 90% right | 101 |
| 1clickVPN · 77% right | 93 |
| User-Agent Switcher for Chrome · 100% right | 14 |
| User-Agent Switcher and Manager · 72% right | 4 |
| FoxyProxy · never claimed | 0 |
| Allow CORS · never claimed | 0 |
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| Extension | Claims |
|---|---|
| Scopus Document Download Manager · 92% right | 306 |
| Send from Gmail (by Google) · 91% right | 259 |
| Kami for Google Chrome · 93% right | 254 |
| Save to Pinterest · 92% right | 249 |
| PrintFriendly · 90% right | 222 |
| Scribbr Citation Generator · 92% right | 146 |
| OneNote Web Clipper · 82% right | 108 |
| The Camelizer · 76% right | 101 |
| GMass · 84% right | 91 |
| Exporter for Followers · 72% right | 61 |
| The QR Code Generator · 100% right | 2 |
| Notion Web Clipper · 22% right | 1 |
| QR Code Generator · 100% right | 1 |
| Save to Google Drive · never claimed | 0 |
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| Extension | Claims |
|---|---|
| Auto Refresh Plus · 93% right | 139 |
| Desktop app for Google Tasks · 81% right | 138 |
| Easy Auto Refresh · 91% right | 125 |
| OneTab · 86% right | 115 |
| Ultimate Car Driving Game · 79% right | 112 |
| New Tab Redirect · 92% right | 103 |
| Ecosia · 82% right | 102 |
| Dark Theme for Google Chrome · 87% right | 97 |
| Morpheon Dark · 87% right | 96 |
| Snake · 83% right | 78 |
| Keep Awake your System or Display · 85% right | 57 |
| Session Buddy · 93% right | 28 |
| Open Multiple URLs · 100% right | 1 |
| Focus To-Do · 100% right | 1 |
| iCloud Bookmarks · 22% right | 1 |
| Dualless · never claimed | 0 |
| Keep Awake · never claimed | 0 |
Opportunity
The 29 rarely found extensions
| Group | Extension | Claims |
|---|---|---|
| Capture & recording | ProctorExam Activity Sharing | 12 |
| Capture & recording | Read Aloud | 2 |
| Capture & recording | Screen Recorder | 1 |
| Capture & recording | Lightshot | 0 |
| Developer tools | Clear Cache | 20 |
| Developer tools | Cookie-Editor | 2 |
| Developer tools | Lighthouse | 1 |
| Developer tools | Google Analytics Debugger | 1 |
| Developer tools | SEO META in 1 CLICK | 1 |
| Identity & security | eID Chrome Extension | 17 |
| Identity & security | Mobility Print | 3 |
| Identity & security | Chromebook Recovery Utility | 1 |
| Identity & security | Chrome Remote Desktop | 0 |
| Identity & security | LINE | 0 |
| Media & video | AHA Music - Song Finder for Browser | 16 |
| Network & VPN | User-Agent Switcher for Chrome | 14 |
| Network & VPN | User-Agent Switcher and Manager | 4 |
| Network & VPN | FoxyProxy | 0 |
| Network & VPN | Allow CORS | 0 |
| Save & research | The QR Code Generator | 2 |
| Save & research | Notion Web Clipper | 1 |
| Save & research | QR Code Generator | 1 |
| Save & research | Save to Google Drive | 0 |
| Tabs & workflow | Session Buddy | 28 |
| Tabs & workflow | Open Multiple URLs | 1 |
| Tabs & workflow | Focus To-Do | 1 |
| Tabs & workflow | iCloud Bookmarks | 1 |
| Tabs & workflow | Dualless | 0 |
| Tabs & workflow | Keep Awake | 0 |
Each one you can detect reliably raises your ceiling by about 0.007–0.01 on average. Some may leave nothing a page can see (they act only on their own sites or from the toolbar); the challenge text says so too.
Caution
The one perfect score
CautionUID 136 scored 1.000 on 19 Oct, claiming all 12 extensions in every round, including ones nobody else finds.
An issue in the challenge repo (#14, 30 Oct) says a top submission uses Chrome's remote-debugging connection instead of what the page can see, and asks whether that is allowed; there is no answer.
A route like that can be patched or failed by the code check at any time, so build on page-visible signals only.