diff --git a/hooks/prenote.js b/hooks/prenote.js
new file mode 100644
index 00000000..9e2d1c1f
--- /dev/null
+++ b/hooks/prenote.js
@@ -0,0 +1,73 @@
+/**
+ * This script auto-creates a note with correct filename in /content/notes
+ * It pries out the current active Firefox tab URL as webmention potential context target.
+ * Hooked up with Mac Shortcut CTRL+OPT+CMD+N !
+ * Depends on https://github.com/andikleen/lz4json to decode FF session content (npm lz4 didn't work)
+ */
+
+const spawn = require("child_process").spawn
+const { writeFileSync, existsSync, mkdirSync } = require('fs');
+const dayjs = require('dayjs');
+
+// options:
+const sublPath = "/Applications/Sublime\ Text.app/Contents/SharedSupport/bin/subl"
+const firefoxProfileDir = "/Users/wgroeneveld/Library/Application Support/Firefox/Profiles/vm6bu36u.default-release"
+const notesDir = `${__dirname}/../content/notes`
+
+const proc = spawn('lz4jsoncat', [
+  `${firefoxProfileDir}/sessionstore-backups/recovery.jsonlz4`
+])
+
+let output = '';
+proc.stdout.on('data', (chunk) => {
+  output += chunk.toString();
+})
+
+function pryOutLastActiveTabFromDecodedJsonRecovery(output) {
+  const session = JSON.parse(output)
+  let lastAccessed = 0
+  let url = ""
+
+  session.windows.forEach(w => {
+  	w.tabs.forEach(t => {
+  		if(t.lastAccessed > lastAccessed) {
+  			lastAccessed = t.lastAccessed
+  			url = t.entries[t.entries.length - 1].url
+  		}
+  	})
+  })
+  return url
+}
+
+function ensureNoteDirectoriesArePresent() {
+  const date = dayjs()
+  const year = date.format("YYYY")
+  const month = date.format("MM")
+  const path = `${notesDir}/${year}/${month}`
+
+  if(!existsSync(`${notesDir}/${year}`)) mkdirSync(`${notesDir}/${year}`)
+  if(!existsSync(path)) mkdirSync(path)
+  return path
+}
+
+proc.on('exit', (code) => {
+	const url = pryOutLastActiveTabFromDecodedJsonRecovery(output)
+	const date = dayjs()
+
+  const path = ensureNoteDirectoriesArePresent()
+  const filename = `${date.format("DD")}h${date.format("HH")}m${date.format("mm")}s${date.format("ss")}`
+  const fullpath = `${path}/${filename}.md`
+  const mddata = `---
+date: ${date.format("YYYY-MM-DDTHH:mm:ssZ")}
+context: "${url}"
+---
+
+
+`
+
+  writeFileSync(fullpath, mddata, 'utf-8')
+  spawn(sublPath, [ fullpath ])
+ 
+	console.log(`Created note ${filename} with context ${url}.`)
+});
+
diff --git a/package.json b/package.json
index 1a4d00ff..03979629 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "lodash": ">=4.17.21"
   },
   "scripts": {
+    "prenote": "node hooks/prenote.js",
     "precommit": "node hooks/precommit.js",
     "postdeploy": "node hooks/postdeploy.js"
   },
@@ -27,6 +28,7 @@
   },
   "homepage": "https://brainbaking.com",
   "dependencies": {
+    "dayjs": "^1.11.1",
     "jam-my-stack": "^1.0.22"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index db33bdfd..3fdb0b1f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1549,6 +1549,7 @@ __metadata:
     "@babel/cli": ^7.8.4
     "@babel/core": ^7.9.6
     "@babel/preset-env": ^7.10.1
+    dayjs: ^1.11.1
     jam-my-stack: ^1.0.22
     lodash: ">=4.17.21"
   languageName: unknown
@@ -1886,6 +1887,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"dayjs@npm:^1.11.1":
+  version: 1.11.1
+  resolution: "dayjs@npm:1.11.1"
+  checksum: 45df0f7ed59ca142ae6eb377ea54aaca20b831ef4c91067133bf9703ccede6fb8af597478dfc2941f55baee72043c79c2e137ec02064fd4bc8433e22df9213e0
+  languageName: node
+  linkType: hard
+
 "debug@npm:^2.2.0, debug@npm:^2.3.3":
   version: 2.6.9
   resolution: "debug@npm:2.6.9"