[WebExtensions] Deprecate runtime.PlatformInfo.nacl_arch#43799
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bershanskiy wants to merge 1 commit intomdn:mainfrom
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[WebExtensions] Deprecate runtime.PlatformInfo.nacl_arch#43799bershanskiy wants to merge 1 commit intomdn:mainfrom
bershanskiy wants to merge 1 commit intomdn:mainfrom
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(comment last updated: 2026-04-17 13:23:15) |
rebloor
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Apr 16, 2026
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@bershanskiy some type of fixes and other suggestions for your consideration
| Values of this type are strings. Possible values are: `"arm"`, `"x86-32"`, `"x86-64"`. | ||
| {{Deprecated_Header}}{{non-standard_header}} | ||
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| The enumerated value representing CPU instruction set architecture of Google Native Client used by the browser. This enum is deprecated, following removal of Google Native Client from Google Chrome. As of 2026, Chromium intends to remove this enum. Consider migrating to `PlatformArch` also available in {{WebExtAPIRef("runtime.PlatformInfo")}} via {{WebExtAPIRef("runtime.getPlatformInfo()")}}. |
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| The enumerated value representing CPU instruction set architecture of Google Native Client used by the browser. This enum is deprecated, following removal of Google Native Client from Google Chrome. As of 2026, Chromium intends to remove this enum. Consider migrating to `PlatformArch` also available in {{WebExtAPIRef("runtime.PlatformInfo")}} via {{WebExtAPIRef("runtime.getPlatformInfo()")}}. | |
| The enumerated value representing the CPU instruction set architecture of Google Native Client used by the browser. This enum is deprecated, following the removal of Google Native Client from Google Chrome. As of 2026, Chromium intends to remove this enum. Consider migrating to {{WebExtAPIRef("runtime.PlatformArch")}} in {{WebExtAPIRef("runtime.PlatformInfo")}} which you obtain using {{WebExtAPIRef("runtime.getPlatformInfo()")}}. |
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Both PlatformArch and PlatformNaclArch are available via the same API runtime.getPlatformInfo(), but the edit appears to suggest otherwise:
Consider migrating to {{WebExtAPIRef("runtime.PlatformArch")}} in {{WebExtAPIRef("runtime.PlatformInfo")}} which you obtain using {{WebExtAPIRef("runtime.getPlatformInfo()")}}.
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| - `ARM` | ||
| - : The string literal `"arm"`. Represents all versions of ARM ISA, including all 32-bit and 64-bit variants. Equivalent to `PlatformArch.ARM` (32-bit variant) and `PlatformArch.ARM64` combined into one value. | ||
| - `X86_32` | ||
| - : The string literal `"x86-32"`. Represents 32-bit variant of the x86 arhitecture. Equivalent to `PlatformArch.X86_32`. | ||
| - `X86_64` | ||
| - : The string literal `"x86-64"`. Represents 64-bit-compatiable variant of the x86 arhitecture. Equivalent to `PlatformArch.X86_64`. | ||
| - `MIPS` | ||
| - : The string literal `"mips"`. Represents 32-bit variant of MIPS ISA, which was never officially supported by official releases. Equivalent to `PlatformArch.MIPS`. | ||
| - `MIPS64` | ||
| - : The string literal `"mips64"`. Represents 64-bit variant of MIPS ISA, which was never officially supported by official releases. Equivalent to `PlatformArch.MIPS64`. |
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The Chrome documentation includes values not included in the MDN documanation (e.g., arm64, mips can we update that here and add to the BCD update? Also, all values are stated as lowercase in the documentation.
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| - `ARM` | |
| - : The string literal `"arm"`. Represents all versions of ARM ISA, including all 32-bit and 64-bit variants. Equivalent to `PlatformArch.ARM` (32-bit variant) and `PlatformArch.ARM64` combined into one value. | |
| - `X86_32` | |
| - : The string literal `"x86-32"`. Represents 32-bit variant of the x86 arhitecture. Equivalent to `PlatformArch.X86_32`. | |
| - `X86_64` | |
| - : The string literal `"x86-64"`. Represents 64-bit-compatiable variant of the x86 arhitecture. Equivalent to `PlatformArch.X86_64`. | |
| - `MIPS` | |
| - : The string literal `"mips"`. Represents 32-bit variant of MIPS ISA, which was never officially supported by official releases. Equivalent to `PlatformArch.MIPS`. | |
| - `MIPS64` | |
| - : The string literal `"mips64"`. Represents 64-bit variant of MIPS ISA, which was never officially supported by official releases. Equivalent to `PlatformArch.MIPS64`. | |
| - `ARM` | |
| - : The string literal `"arm"`. Represents all versions of the ARM ISA, including all 32-bit and 64-bit variants. Equivalent to [`PlatformArch.arm`](/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/PlatformArch#arm) (32-bit variant) and `PlatformArch.arm64` combined into one value. | |
| - `X86_32` | |
| - : The string literal `"x86-32"`. Represents the 32-bit variant of the x86 architecture. Equivalent to [`PlatformArch.x86_32`](/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/PlatformArch#x86-32) . | |
| - `X86_64` | |
| - : The string literal `"x86-64"`. Represents the 64-bit variant of the x86 architecture. Equivalent to [`PlatformArch.x86_64`](/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/PlatformArch#x86-64). | |
| - `MIPS` | |
| - : The string literal `"mips"`. Represents the 32-bit variant of the MIPS ISA, which was never supported by official releases. Equivalent to `PlatformArch.mips`. | |
| - `MIPS64` | |
| - : The string literal `"mips64"`. Represents the 64-bit variant of the MIPS ISA, which was never supported by official releases. Equivalent to `PlatformArch.mips64`. |
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Copied your version and just removed extra space at the end of description for x86-64.
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The Chrome documentation includes values not included in the MDN documanation
Chromium specifies that chrome.runtime.PlatformNaclArch has value {ARM: 'arm', MIPS: 'mips', MIPS64: 'mips64', X86_32: 'x86-32', X86_64: 'x86-64'}, we already updated this document accordingly. Or did you mean that we should also update document about chrome.runtime.PlatformArch?
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Thanks all! This is generally looking good, happy to do a final review once the suggested changes have been incorporated. |
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Chromium is the only engine which supported Google Native Client (NaCl) and runtime.PlatformInfo.nacl_arch WebExtension API. Chromium removed NaCl and is currently in the process of removal of associated WebExtensions API remnants. Details: chromium/chromium@913e0c0 chromium/chromium@6e62e12 chromium/chromium@9b22796
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Description
Chromium is the only engine which supported Google Native Client (NaCl) and
runtime.PlatformInfo.nacl_archWebExtension API. Chromium removed NaCl and is currently in the process of removal of associated WebExtension API remnants.Motivation
Update MDN in line with Chromium development.
Additional details
Google Chrome deprecated
runtime.PlatformInfo.nacl_archandruntime.PlatformNaclArch. Google plans to run an experiment removingnacl_archfromruntime.getPlatformInfo()and we would like to increase awareness of this deprecation. Hardcoded constant enumruntime.PlatformNaclArchis not part of this experiment, but will be removed shortly afterruntime.PlatformInfo.nacl_archremoval.Details:
chromium/chromium@913e0c0
chromium/chromium@6e62e12
chromium/chromium@9b22796
Related issues and pull requests
I will prepare BCD PR shortly.
CC @oliverdunk