PKBR
Check Control Digits of Bank Account Number.
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manifest.json
{
"update_url": "https://clients2.google.com/service/update2/crx",
"name": "PKBR",
"description": "Check Control Digits of Bank Account Number.",
"version": "1.0",
"manifest_version": 3,
"action": {
"default_popup": "popup.html"
},
"icons": {
"128": "icon128.png"
}
}