FF144 MediaDevices.getUserMedia() method allows resizeMode constraint

[hamishwillee]

FF144 added a new constraint parameter resizeMode for use with MediaDevices.getUserMedia().

This allows a developer to specify whether the video from the camera should be cropped and/or downscaled to match other constraints, which may be natively supported by the camera - essentially gives them what they ask for rather than what the camera is capable of delivering.

This adds a release note.

Related docs work can be tracked in #41132

[github-actions]

Preview URLs

• /en-US/docs/Mozilla/Firefox/Releases/144

Flaws (2)

URL: /en-US/docs/Mozilla/Firefox/Releases/144
Title: Firefox 144 for developers
Flaw count: 2

• unknown:
  • Error serializing baseline for numeric-seperators: missing field description``
  • Error serializing baseline for single-color-gradients: missing field description``

External URLs (1)

URL: /en-US/docs/Mozilla/Firefox/Releases/144
Title: Firefox 144 for developers

• https://bugzil.la/1286945 (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2025-09-22 00:20:33)

[dipikabh]

Thank you!

[github-actions]

This pull request has merge conflicts that must be resolved before it can be merged.

[hamishwillee]

Thanks for the review @dipikabh . I've thought about this some more and realized my initial answer wasn't very precise. Can you please re-review?

[dipikabh]

Thanks for revising this! This is a much better version - it's clarifying that it's the browser that may crop/downscale the video. I always appreciate it when we spell out the "doer" :)

[hamishwillee]

Thanks for the review and feedback @dipikabh - changes accepted!