This calculator is used to Upgrade and Downgrade license keys
License Calculator Extension
This calculator will allow you to Downgrade or Upgrade License keys for 1, 3, 7 and 10 year option without having to do the mathematics. The algorithm will take care of the formula and you just need to provide when the key was created, select the year and choose the upgrade or downgrade option.
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Source Manifest.json
{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name": "License Calculator", "description": "This calculator is used to Upgrade and Downgrade license keys", "version": "1.5.0", "icons": { "16": "img/img.png", "48": "img/img.png", "128": "img/img.png" }, "background": { "scripts": ["js/jquery.min.js","js/moment.min.js","js/background.js"], "persistent": false }, "content_scripts": [ { "matches": ["http://*/*","https://*/*"], "js": ["js/jquery.min.js"] } ], "browser_action": { "default_title": "Click to view the Calculator", "default_popup": "popup.html" }}
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