manifest.json

{
    "manifest_version": 2,
    "name": "__MSG_extensionName__",
    "version": "1.0",
    "description": "__MSG_extensionDescription__",
    "default_locale": "en",
    "icons": {
        "19": "icons/new-tab-32.png",
        "38": "icons/new-tab-48.png",
        "64": "icons/new-tab-64.png",
        "128": "icons/new-tab-128.png"
    },

    "page_action": {
        "browser_style": true,
        "default_icon": {
            "19": "icons/new-tab-19.png",
            "38": "icons/new-tab-38.png"
        },
        "default_title": "__MSG_buttonDefaultTitle__"
    },
    "background": {
        "scripts": ["background.js"]
    },
    "content_scripts": [
        {
            "matches": [
                "*://*/c/*",
                "*://*/latest",
                "*://*/new",
                "*://*/top",
                "*://*/unread"
            ],
            "js": [
                "shared.js",
                "forums/discourse.js"
            ]
        },
        {
            "matches": [
                "*://*/*?f=*",
                "*://*/*?search_id=newposts*",
                "*://*/*?search_id=unreadposts*"
            ],
            "js": [
                "shared.js",
                "forums/phpbb.js"
            ]
        },
        {
            "matches": [
                "*://*/*?action=unread*",
                "*://*/*?board=*"
            ],
            "js": [
                "shared.js",
                "forums/smf.js"
            ]
        },
        {
            "matches": ["*://*/forums/privatemessage/index"],
            "js": [
                "shared.js",
                "forums/vbulletin.js"
            ]
        }
    ]
}