i3-config-and-scripts/layouts/TildaFirefoxPersonal.json

// vim:ts=4:sw=4:et
{
    // tabbed split container with 2 children
    "border": "normal",
    "floating": "auto_off",
    "layout": "tabbed",
    "percent": 1,
    "type": "con",
    "nodes": [
        {
            "border": "normal",
            "current_border_width": 2,
            "floating": "auto_off",
            "geometry": {
               "height": 736,
               "width": 1001,
               "x": 365,
               "y": 0
            },
            "name": "personal: Tilda",
            "percent": 0.5,
            "swallows": [
               {
                "class": "^personal\\:Tilda$",
                "instance": "^personal\\:tilda$"
               // "title": "^tilda$",
               // "transient_for": "^$"
               }
            ],
            "type": "con"
        },
        {
            "border": "normal",
            "current_border_width": 2,
            "floating": "auto_off",
            "geometry": {
               "height": 739,
               "width": 1366,
               "x": 0,
               "y": 29
            },
            "name": "personal: Firefox",
            "percent": 0.5,
            "swallows": [
               {
                "class": "^personal\\:Firefox$",
                "instance": "^personal\\:Navigator$"
               // "title": "^Facebook\\ \\-\\ Mozilla\\ Firefox$",
               // "transient_for": "^$"
               }
            ],
            "type": "con"
        }
    ]
}