chore(launcher): order firefox channels by stability (beta before dev)

Mozilla's stability ordering is Release → Beta → Developer Edition →
Nightly — Developer Edition is built on the Beta channel with extra
experimental features enabled, so it's strictly less stable than Beta.
Reorder the firefox entries in known-browsers, darwin, and windows to
match.

For known-browsers this also flips auto-detection identity for ambiguous
binaries (Mozilla's Beta installer reuses the firefox binary that the
\\\S+b\\\S* regex catches in both channels): an auto-detected beta-format
build now reports as firefox:beta rather than firefox:dev, which matches
Mozilla's current channel naming. Explicit --browser firefox:dev still
works for actual Developer Edition installs.

packages/launcher/lib/darwin/index.ts

@@ -56,12 +56,6 @@ export const browsers: Detectors = {
       bundleId: 'org.mozilla.firefox',
       versionProperty: 'CFBundleShortVersionString',
     },
-    dev: {
-      appName: 'Firefox Developer Edition.app',
-      executable: 'Contents/MacOS/firefox',
-      bundleId: 'org.mozilla.firefoxdeveloperedition',
-      versionProperty: 'CFBundleShortVersionString',
-    },
     beta: {
       // Mozilla's Beta channel installer reuses the stable Firefox.app bundle —
       // the version string is what differentiates them at runtime.
@@ -70,6 +64,12 @@ export const browsers: Detectors = {
       bundleId: 'org.mozilla.firefox',
       versionProperty: 'CFBundleShortVersionString',
     },
+    dev: {
+      appName: 'Firefox Developer Edition.app',
+      executable: 'Contents/MacOS/firefox',
+      bundleId: 'org.mozilla.firefoxdeveloperedition',
+      versionProperty: 'CFBundleShortVersionString',
+    },
     nightly: {
       appName: 'Firefox Nightly.app',
       executable: 'Contents/MacOS/firefox',

packages/launcher/lib/known-browsers.ts

@@ -86,17 +86,6 @@ export const knownBrowsers: Browser[] = [
     binary: 'firefox',
     validator: firefoxValidatorFn,
   },
-  {
-    name: 'firefox',
-    family: 'firefox',
-    channel: 'dev',
-    displayName: 'Firefox Developer Edition',
-    // Mozilla Firefox 73.0b12
-    versionRegex: /^Mozilla Firefox (\S+b\S*)$/m,
-    // ubuntu PPAs install it as firefox
-    binary: ['firefox-developer-edition', 'firefox'],
-    validator: firefoxValidatorFn,
-  },
   {
     name: 'firefox',
     family: 'firefox',
@@ -109,6 +98,17 @@ export const knownBrowsers: Browser[] = [
     binary: ['firefox-beta', 'firefox'],
     validator: firefoxValidatorFn,
   },
+  {
+    name: 'firefox',
+    family: 'firefox',
+    channel: 'dev',
+    displayName: 'Firefox Developer Edition',
+    // Mozilla Firefox 73.0b12
+    versionRegex: /^Mozilla Firefox (\S+b\S*)$/m,
+    // ubuntu PPAs install it as firefox
+    binary: ['firefox-developer-edition', 'firefox'],
+    validator: firefoxValidatorFn,
+  },
   {
     name: 'firefox',
     family: 'firefox',

packages/launcher/lib/windows/index.ts

@@ -109,10 +109,10 @@ const formPaths: WindowsBrowserPaths = {
   },
   firefox: {
     stable: getFirefoxPaths('Mozilla Firefox'),
-    dev: getFirefoxPaths('Firefox Developer Edition'),
     // Mozilla's Beta installer reuses the Mozilla Firefox path; the Firefox Beta folder
     // here matches PPA-style or side-by-side beta installs that are kept separate.
     beta: getFirefoxPaths('Firefox Beta'),
+    dev: getFirefoxPaths('Firefox Developer Edition'),
     nightly: getFirefoxPaths('Firefox Nightly'),
   },
   edge: {

packages/launcher/test/unit/__snapshots__/browsers.spec.ts.snap

@@ -61,11 +61,11 @@ exports[`browsers > returns the expected list of browsers 1`] = `
   },
   {
     "binary": [
-      "firefox-developer-edition",
+      "firefox-beta",
       "firefox",
     ],
-    "channel": "dev",
-    "displayName": "Firefox Developer Edition",
+    "channel": "beta",
+    "displayName": "Firefox Beta",
     "family": "firefox",
     "name": "firefox",
     "validator": [Function],
@@ -73,11 +73,11 @@ exports[`browsers > returns the expected list of browsers 1`] = `
   },
   {
     "binary": [
-      "firefox-beta",
+      "firefox-developer-edition",
       "firefox",
     ],
-    "channel": "beta",
-    "displayName": "Firefox Beta",
+    "channel": "dev",
+    "displayName": "Firefox Developer Edition",
     "family": "firefox",
     "name": "firefox",
     "validator": [Function],

packages/launcher/test/unit/__snapshots__/darwin.spec.ts.snap

@@ -107,26 +107,6 @@ exports[`darwin browser detection > detects browsers as expected 1`] = `
     "version": "someVersion",
     "versionRegex": /\\^Mozilla Firefox \\(\\[\\^\\\\sab\\]\\+\\)\\$/m,
   },
-  {
-    "binary": [
-      "firefox-developer-edition",
-      "firefox",
-    ],
-    "channel": "dev",
-    "displayName": "Firefox Developer Edition",
-    "family": "firefox",
-    "findAppParams": {
-      "appName": "Firefox Developer Edition.app",
-      "bundleId": "org.mozilla.firefoxdeveloperedition",
-      "executable": "Contents/MacOS/firefox",
-      "versionProperty": "CFBundleShortVersionString",
-    },
-    "name": "firefox",
-    "path": "/Applications/Firefox Developer Edition.app/Contents/MacOS/firefox",
-    "validator": [Function],
-    "version": "someVersion",
-    "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
-  },
   {
     "binary": [
       "firefox-beta",
@@ -147,6 +127,26 @@ exports[`darwin browser detection > detects browsers as expected 1`] = `
     "version": "someVersion",
     "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
   },
+  {
+    "binary": [
+      "firefox-developer-edition",
+      "firefox",
+    ],
+    "channel": "dev",
+    "displayName": "Firefox Developer Edition",
+    "family": "firefox",
+    "findAppParams": {
+      "appName": "Firefox Developer Edition.app",
+      "bundleId": "org.mozilla.firefoxdeveloperedition",
+      "executable": "Contents/MacOS/firefox",
+      "versionProperty": "CFBundleShortVersionString",
+    },
+    "name": "firefox",
+    "path": "/Applications/Firefox Developer Edition.app/Contents/MacOS/firefox",
+    "validator": [Function],
+    "version": "someVersion",
+    "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
+  },
   {
     "binary": [
       "firefox-nightly",

packages/launcher/test/unit/__snapshots__/windows.spec.ts.snap

@@ -105,20 +105,6 @@ exports[`windows browser detection > detects Firefox local installs 1`] = `
     "version": "100",
     "versionRegex": /\\^Mozilla Firefox \\(\\[\\^\\\\sab\\]\\+\\)\\$/m,
   },
-  {
-    "binary": [
-      "firefox-developer-edition",
-      "firefox",
-    ],
-    "channel": "dev",
-    "displayName": "Firefox Developer Edition",
-    "family": "firefox",
-    "name": "firefox",
-    "path": "C:/Users/flotwig/AppData/Local/Firefox Developer Edition/firefox.exe",
-    "validator": [Function],
-    "version": "300",
-    "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
-  },
   {
     "binary": [
       "firefox-beta",
@@ -133,6 +119,20 @@ exports[`windows browser detection > detects Firefox local installs 1`] = `
     "version": "400",
     "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
   },
+  {
+    "binary": [
+      "firefox-developer-edition",
+      "firefox",
+    ],
+    "channel": "dev",
+    "displayName": "Firefox Developer Edition",
+    "family": "firefox",
+    "name": "firefox",
+    "path": "C:/Users/flotwig/AppData/Local/Firefox Developer Edition/firefox.exe",
+    "validator": [Function],
+    "version": "300",
+    "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
+  },
   {
     "binary": [
       "firefox-nightly",
@@ -221,20 +221,6 @@ exports[`windows browser detection > detects browsers as expected 1`] = `
     "version": "72",
     "versionRegex": /\\^Mozilla Firefox \\(\\[\\^\\\\sab\\]\\+\\)\\$/m,
   },
-  {
-    "binary": [
-      "firefox-developer-edition",
-      "firefox",
-    ],
-    "channel": "dev",
-    "displayName": "Firefox Developer Edition",
-    "family": "firefox",
-    "name": "firefox",
-    "path": "C:/Program Files (x86)/Firefox Developer Edition/firefox.exe",
-    "validator": [Function],
-    "version": "73",
-    "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
-  },
   {
     "binary": [
       "firefox-beta",
@@ -249,6 +235,20 @@ exports[`windows browser detection > detects browsers as expected 1`] = `
     "version": "152",
     "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
   },
+  {
+    "binary": [
+      "firefox-developer-edition",
+      "firefox",
+    ],
+    "channel": "dev",
+    "displayName": "Firefox Developer Edition",
+    "family": "firefox",
+    "name": "firefox",
+    "path": "C:/Program Files (x86)/Firefox Developer Edition/firefox.exe",
+    "validator": [Function],
+    "version": "73",
+    "versionRegex": /\\^Mozilla Firefox \\(\\\\S\\+b\\\\S\\*\\)\\$/m,
+  },
   {
     "binary": [
       "firefox-nightly",