1572165 - Wrong validation in manifest: "Error processing chrome_settings_overrides.startup_pages: An unexpected property was found in the WebExtension manifest."

Status: RESOLVED INCOMPLETE

(WebExtensions :: Developer Tools, defect)

Description

[Kai]

Attachment: manifest.json

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

Re-developing an Add-On that will display a new startup page.
To the best of my knowledge, this used to work in previous versions of Firefox.

1: In manifest.json, property "startup_pages" for "chrome_settings_overrides" is specified. (See attachment for example)
2: Load manifest.json as Temporary Add-On.
3: Add-On is not loaded. An error-message is displayed.

Actual results:

Error-Message:
Reading manifest: Error processing chrome_settings_overrides.startup_pages: An unexpected property was found in the WebExtension manifest.

Expected results:

Settings are accepted and used as described within specifications:
https://developer.chrome.com/extensions/settings_override

Comment 1

[Liviu Seplecan]

Hi @Kai, please add a valid manifest in order to be loaded then tested. Mention that even in Chrome I cannot load it.
Regards,
Liviu

Comment 2

[Liviu Seplecan]

I will mark this as "Incomplete" since the reporter doesn't add new info.
@Kai, please fell free to reopen the issue, if you have new info about.
Regards,
Liviu

Comment 3

[Kai]

As a matter of fact this setting is (now?) reported as unsupported:
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/chrome_settings_overrides

Which is a shame, as I have to package differently now between Firefox and Chrome. :(