[chromium] invalid manifest file

[laur89]

Launching chromium will first pop up an error message stating:

Failed to load extension from: /usr/share/chromium/extensions/ncibgoaomkmdpilpocfeponihegamlic.json. Manifest file is missing or unreadable

$ cat /usr/share/chromium/extensions/ncibgoaomkmdpilpocfeponihegamlic.json
{
    "external_update_url": "https://clients2.google.com/service/update2/crx"
}

Never written a browser extension, but is it possible the manifest does not adhere to minimal valid standard?

Possibly a wrong repo for the issue. If so please point me in correct direction.

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chromium Version 144.0.7559.109 (Official Build) built on Debian GNU/Linux forky/sid (64-bit)
Web eID 2.3.0
running debian stable (but chromium pulled from testing repo)