manifest.json

{
    "applications": {
        "gecko": {
            "id": "opentabsnexttocurrent@sblask",
            "strict_min_version": "57.0"
        }
    },
    "author": "Sebastian Blask",
    "background": {
        "scripts": [
            "browser-polyfill.js",
            "background.js"
        ]
    },
    "commands": {
        "open-new-tab-at-default-location": {
            "description": "Open new tab at default location",
            "suggested_key": {
                "default": "Ctrl+Y",
                "windows": "Ctrl+Shift+Y"
            }
        }
    },
    "description": "Open new tabs to the right of the current one.",
    "homepage_url": "https://github.com/sblask/webextension-open-tabs-next-to-current",
    "icons": {
        "128": "icon-128x128.png",
        "16": "icon-16x16.png",
        "32": "icon-32x32.png",
        "48": "icon-48x48.png",
        "64": "icon-64x64.png"
    },
    "manifest_version": 2,
    "name": "Open Tabs Next to Current",
    "permissions": [
        "sessions"
    ],
    "version": "2.0.14"
}