Cross platform extensions are no longer working in Ungoogled chromium

[trymeouteh]

OS/Platform

Debian, Ubuntu, and derivatives

Installed

Flatpak

Version

144.0.7559.109

Have you tested that this is not an upstream issue or an issue with your configuration?

• I have tried reproducing this issue in Chrome and it could not be reproduced there
• I have tried reproducing this issue in vanilla Chromium and it could not be reproduced there
• I have tried reproducing this issue in ungoogled-chromium with a new and empty profile using --user-data-dir command line argument and it could not be reproduced there

Description

Browser extensions feature missing?

How to Reproduce?

manifest.json

{
  "manifest_version": 3,
  "name": "My Extension",
  "version": "1.0.0",
  "background": {
    "scripts": ["background.js"],
    "service_worker": "background.js"
  }
}

And simple have an empty file named background.js

Actual behaviour

Extension loads without any errors.

Expected behaviour

Extensions loads with errors and therefore does not work.

Relevant log output

'background.scripts' requires manifest version of 2 or lower.

Additional context

It seems certain extensions do not work in Ungoogled Chromium anymore but does work in Chromium, Chrome and firefox. It is made to work in Chromium and Firefox browsers. Any simple extension that uses a service worker does not work in Ungoogled Chromium.

[dumbmoron]

Additional context

It seems certain extensions do not work in Ungoogled Chromium anymore but does work in Chromium, Chrome and firefox. It is made to work in Chromium and Firefox browsers. Any simple extension that uses a service worker does not work in Ungoogled Chromium.

Are you sure about that? I think the error message is correct. MDN says:

Chrome:

• supports background.service_worker.
• supports background.scripts (and background.page) in Manifest V2 extensions only.
  ... From Chrome 121, their presence in a Manifest V3 extension is ignored.

[github-actions]

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