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Updates to Web Speech API data #27901

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Merged
merged 6 commits into from
Sep 19, 2025
Merged

Updates to Web Speech API data #27901

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bc5e9e6
Updates to Web Speech API data
chrisdavidmills Sep 16, 2025
83e1413
Update http/headers/Permissions-Policy.json
chrisdavidmills Sep 17, 2025
bbf1ffe
Fixes for caugner review comments
chrisdavidmills Sep 17, 2025
32b4d59
Update http/headers/Permissions-Policy.json
chrisdavidmills Sep 19, 2025
7131479
Add Firefox 143 support data to SpeechRecognition
chrisdavidmills Sep 19, 2025
66fc423
Fix up Firefox support data and including prefs
chrisdavidmills Sep 19, 2025
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18 changes: 7 additions & 11 deletions api/SpeechGrammar.json
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Addendum: Firefox also supports SpeechGrammar only since 142 behind the pref.

Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,7 @@
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
],
"notes": "Note that currently only the speech synthesis part is available in Firefox Desktop - the speech recognition part will be available soon, once the required internal permissions are sorted out."
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -40,7 +39,7 @@
},
"status": {
"experimental": false,
"standard_track": false,
"standard_track": true,
"deprecated": true
}
},
Expand All @@ -63,8 +62,7 @@
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
],
"notes": "Note that currently only the speech synthesis part is available in Firefox Desktop - the speech recognition part will be available soon, once the required internal permissions are sorted out."
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand Down Expand Up @@ -107,8 +105,7 @@
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
],
"notes": "Note that currently only the speech synthesis part is available in Firefox Desktop - the speech recognition part will be available soon, once the required internal permissions are sorted out."
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -126,7 +123,7 @@
},
"status": {
"experimental": false,
"standard_track": false,
"standard_track": true,
"deprecated": true
}
}
Expand All @@ -151,8 +148,7 @@
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
],
"notes": "Note that currently only the speech synthesis part is available in Firefox Desktop - the speech recognition part will be available soon, once the required internal permissions are sorted out."
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -170,7 +166,7 @@
},
"status": {
"experimental": false,
"standard_track": false,
"standard_track": true,
"deprecated": true
}
}
Expand Down
78 changes: 60 additions & 18 deletions api/SpeechGrammarList.json
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,14 @@
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
"version_added": "44",
"flags": [
{
"type": "preference",
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
]
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FWIW, Firefox also supports the webkit prefix for these interfaces and their constructors:

image

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@chrisdavidmills chrisdavidmills Sep 19, 2025 •
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So you probably want me to update the support data for each one of these interfaces and their constructors to something like

"firefox": [
  {
    "version_added": "142",
    "flags": [
      {
        "type": "preference",
        "name": "media.webspeech.recognition.enable",
        "value_to_set": "true"
      }
    ]
  },
  {
    "prefix": "webkit",
    "version_added": "33"
  }
]

But, which browser version?

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@caugner caugner Sep 19, 2025 •
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Yes, only the interfaces and the constructors, with the same version and flags:

[
  {
    "version_added": "142",
    "flags": [
      {
        "type": "preference",
        "name": "media.webspeech.recognition.enable",
        "value_to_set": "true"
      }
    ]
  },
  {
    "version_added": "142",
    "flags": [
      {
        "type": "preference",
        "name": "media.webspeech.recognition.enable",
        "value_to_set": "true"
      }
    ],
    "prefix": "webkit"
  }
]

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OK, done

},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -39,9 +46,9 @@
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"experimental": false,
"standard_track": true,
"deprecated": false
"deprecated": true
}
},
"SpeechGrammarList": {
Expand All @@ -65,7 +72,14 @@
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
"version_added": "44",
"flags": [
{
"type": "preference",
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -84,9 +98,9 @@
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"experimental": false,
"standard_track": true,
"deprecated": false
"deprecated": true
}
}
},
Expand All @@ -104,7 +118,14 @@
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
"version_added": "44",
"flags": [
{
"type": "preference",
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -123,9 +144,9 @@
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"experimental": false,
"standard_track": true,
"deprecated": false
"deprecated": true
}
}
},
Expand All @@ -143,7 +164,14 @@
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
"version_added": "44",
"flags": [
{
"type": "preference",
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -162,9 +190,9 @@
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"experimental": false,
"standard_track": true,
"deprecated": false
"deprecated": true
}
}
},
Expand All @@ -182,7 +210,14 @@
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
"version_added": "44",
"flags": [
{
"type": "preference",
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -201,9 +236,9 @@
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"experimental": false,
"standard_track": true,
"deprecated": false
"deprecated": true
}
}
},
Expand All @@ -221,7 +256,14 @@
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
"version_added": "44",
"flags": [
{
"type": "preference",
"name": "media.webspeech.recognition.enable",
"value_to_set": "true"
}
]
},
"firefox_android": "mirror",
"oculus": "mirror",
Expand All @@ -240,9 +282,9 @@
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"experimental": false,
"standard_track": true,
"deprecated": false
"deprecated": true
}
}
}
Expand Down
88 changes: 82 additions & 6 deletions api/SpeechRecognition.json
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As mentioned above, Firefox also supports SpeechRecognition behind the pref, confirmed with https://mdn-bcd-collector.gooborg.com/tests/api/SpeechRecognition in Firefox 143.

image

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OK, I've added Firefox 143 support for SpecchRecognition and all relevant subfeatures.

Original file line number Diff line number Diff line change
Expand Up @@ -211,9 +211,11 @@
"spec_url": "https://webaudio.github.io/web-speech-api/#dom-speechrecognition-available",
"support": {
"chrome": {
"version_added": "139"
"version_added": "142"
},
"chrome_android": {
"version_added": false
},
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
Expand Down Expand Up @@ -395,9 +397,11 @@
"spec_url": "https://webaudio.github.io/web-speech-api/#dom-speechrecognition-install",
"support": {
"chrome": {
"version_added": "139"
"version_added": "142"
},
"chrome_android": {
"version_added": false
},
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
Expand Down Expand Up @@ -565,14 +569,49 @@
}
}
},
"phrases": {
"__compat": {
"spec_url": "https://webaudio.github.io/web-speech-api/#dom-speechrecognition-phrases",
"support": {
"chrome": {
"version_added": "142"
},
"chrome_android": {
"version_added": false
},
"edge": "mirror",
"firefox": {
"version_added": false
},
"firefox_android": "mirror",
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": false
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"standard_track": true,
"deprecated": false
}
}
},
"processLocally": {
"__compat": {
"spec_url": "https://webaudio.github.io/web-speech-api/#dom-speechrecognition-processlocally",
"support": {
"chrome": {
"version_added": "139"
"version_added": "142"
},
"chrome_android": {
"version_added": false
},
"chrome_android": "mirror",
"edge": "mirror",
"firefox": {
"version_added": false
Expand Down Expand Up @@ -824,6 +863,43 @@
"standard_track": true,
"deprecated": false
}
},
"audioTrack": {
"__compat": {
"description": "`audioTrack` parameter",
"spec_url": "https://webaudio.github.io/web-speech-api/#dom-speechrecognition-start-audiotrack-audiotrack",
"tags": [
"web-features:speech-recognition"
],
"support": {
"chrome": {
"version_added": "135"
},
"chrome_android": {
"version_added": false
},
"edge": "mirror",
"firefox": {
"version_added": false
},
"firefox_android": "mirror",
"oculus": "mirror",
"opera": "mirror",
"opera_android": "mirror",
"safari": {
"version_added": false
},
"safari_ios": "mirror",
"samsunginternet_android": "mirror",
"webview_android": "mirror",
"webview_ios": "mirror"
},
"status": {
"experimental": true,
"standard_track": true,
"deprecated": false
}
}
}
},
"start_event": {
Expand Down
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