Karabiner-Elements Google Chrome Shortcuts Complex Modifications

chrome_shortcuts.json

{
    "title": "Chrome Shortcuts",
    "rules": [
        {
            "description": "Search (Control+F)",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ]
                        },
                        "key_code": "f"
                    },
                    "conditions": [
                        {
                            "type": "frontmost_application_if",
                            "description": "Google Chrome",
                            "bundle_identifiers": [
                                "^com\\.google\\.Chrome$"
                            ]
                        }
                    ],
                    "to": [
                        {
                            "repeat": true,
                            "key_code": "f",
                            "modifiers": [
                                "left_gui"
                            ]
                        }
                    ]
                }
            ]
        },
        {
            "description": "New tab (Control+T)",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ]
                        },
                        "key_code": "t"
                    },
                    "conditions": [
                        {
                            "type": "frontmost_application_if",
                            "description": "Google Chrome",
                            "bundle_identifiers": [
                                "^com\\.google\\.Chrome$"
                            ]
                        }
                    ],
                    "to": [
                        {
                            "repeat": true,
                            "key_code": "t",
                            "modifiers": [
                                "left_gui"
                            ]
                        }
                    ]
                }
            ]
        },
        {
            "description": "Close tab (Control+W)",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ]
                        },
                        "key_code": "w"
                    },
                    "conditions": [
                        {
                            "type": "frontmost_application_if",
                            "description": "Google Chrome",
                            "bundle_identifiers": [
                                "^com\\.google\\.Chrome$"
                            ]
                        }
                    ],
                    "to": [
                        {
                            "repeat": true,
                            "key_code": "w",
                            "modifiers": [
                                "left_gui"
                            ]
                        }
                    ]
                }
            ]
        },
        {
            "description": "Open Downloads (Control+J)",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ]
                        },
                        "key_code": "j"
                    },
                    "conditions": [
                        {
                            "type": "frontmost_application_if",
                            "description": "Google Chrome",
                            "bundle_identifiers": [
                                "^com\\.google\\.Chrome$"
                            ]
                        }
                    ],
                    "to": [
                        {
                            "repeat": true,
                            "key_code": "l",
                            "modifiers": [
                                "left_gui",
                                "left_alt"
                            ]
                        }
                    ]
                }
            ]
        }
    ]
}

Karabiner-Elements Chrome Shortcut README

Place chrome_shortcuts.json file in ~/.config/karabiner/assets/complex_modifications