Chrome uses "jpeg" as default format for captured images #40410
Description
MDN URL
What specific section or headline is this issue about?
ImageDetails / format - Chrome is actually using jpeg as default
What information was incorrect, unhelpful, or incomplete?
extensionTypes.ImageFormat. The format of the resulting image. Default is "png".
What did you expect to see?
Maybe something like this:
Default value is browser-specific: Firefox uses "png", Chrome uses "jpeg". To avoid inconsistencies, consider specifying the format explicitly.
Do you have any supporting links, references, or citations?
Chrome docs:
https://developer.chrome.com/docs/extensions/reference/api/extensionTypes#type-ImageDetails
The format of the resulting image. Default is "jpeg".
Real world test using Chrome 140.0.7301.0:
Do you have anything more you want to share?
No response
MDN metadata
Page report details
- Folder:
en-us/mozilla/add-ons/webextensions/api/extensiontypes/imagedetails - MDN URL: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/extensionTypes/ImageDetails
- GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/mozilla/add-ons/webextensions/api/extensiontypes/imagedetails/index.md
- Last commit: 5c2abb4
- Document last modified: 2025-07-16T02:35:35.000Z