The right way to Get Extension Manifest Data

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    Engaged on an internet extension will be kinda wild — on one facet you are primarily simply coding a web site, on the opposite facet you are restricted to what the browser says you are able to do within the extension execution atmosphere. One change in that atmosphere is coming January 2023 — pushing extensions to maneuver to manifest model 3. I just lately bought interested by whether or not different widespread extensions had accomplished the model 3 replace.

    Executing the next command within the background web page (manifest model 2) or service employee (model 3) will present you the extension’s manifest:

    chrome.runtime.getManifest()
    

    The getManifest name returns a big object detailing the extension’s manifest. Here is what you’d see for the MetaMask browser extension:

    {
        "writer": "https://metamask.io",
        "background": {
            "web page": "background.html",
            "persistent": true
        },
        "browser_action": {
            "default_icon": {
                "16": "photographs/icon-16.png",
                "19": "photographs/icon-19.png",
                "32": "photographs/icon-32.png",
                "38": "photographs/icon-38.png",
                "64": "photographs/icon-64.png",
            },
            "default_popup": "popup.html",
            "default_title": "MetaMask"
        },
        "instructions": {
            "_execute_browser_action": {
                "suggested_key": {
                    "chromeos": "Alt+Shift+M",
                    "linux": "Alt+Shift+M",
                    "mac": "Alt+Shift+M",
                    "home windows": "Alt+Shift+M"
                }
            }
        },
        "content_scripts": [
            {
                "all_frames": true,
                "js": [
                    "disable-console.js",
                    "globalthis.js",
                    "lockdown-install.js",
                    "lockdown-run.js",
                    "lockdown-more.js",
                    "contentscript.js"
                ],
                "matches": [
                    "file://*/*",
                    "http://*/*",
                    "https://*/*"
                ],
                "run_at": "document_start"
            }
        ],
        "current_locale": "en_US",
        "default_locale": "en",
        "description": "An Ethereum Pockets in your Browser",
        "externally_connectable": {
            "ids": [
                "*"
            ],
            "matches": [
                "https://metamask.io/*"
            ]
        },
        "icons": {
            "16": "photographs/icon-16.png",
            "19": "photographs/icon-19.png",
            "32": "photographs/icon-32.png",
            "38": "photographs/icon-38.png",
            "48": "photographs/icon-48.png",
            "64": "photographs/icon-64.png",
        },
        "manifest_version": 2,
        "minimum_chrome_version": "66",
        "title": "MetaMask",
        "permissions": [
            "storage",
            "unlimitedStorage",
            "clipboardWrite",
            "http://localhost:8545/",
            "https://*.infura.io/",
            "https://lattice.gridplus.io/*",
            "activeTab",
            "webRequest",
            "*://*.eth/",
            "notifications"
        ],
        "short_name": "MetaMask",
        "update_url": "https://clients2.google.com/service/update2/crx",
        "model": "10.16.1"
    }
    

    Lots of internet extensions are nonetheless utilizing manifest model 2, so many extension builders are pushing to complete manifest model 3 work!


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