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This change was cancelled. See the bug. With the removal of Flash, there is no longer the need to return anything for navigator.plugins and navigator.mimeTypes. These APIs were used primarily for a) probing for Flash player support, or b) fingerprinting. As such, we'd like to return empty for these two properties. Gecko already switched to returning *only* Flash starting with Firefox 52, and returning empty as of Firefox 85.


Improve interop, remove fingerprinting vector, general API cleanup.


Status in Chromium


No longer pursuing (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • Shipped/Shipping
  • No signal
  • No signal
  • No signals



Note that this is not the removal or change of any API, it is merely the return of empty arrays for these two existing APIs.

Search tags

navigator, plugins,

Last updated on 2021-04-13