interface _WebExtensionManifestSidebarAction {
    browser_style?: boolean;
    default_icon?: IconPath;
    default_panel: string;
    default_title?: string;
    open_at_install?: boolean;
}
Index
browser_style? default_icon? default_panel default_title? open_at_install?
browser_style?: boolean

Defaults to true in Manifest V2; Deprecated in Manifest V3.

default_icon?: IconPath
default_panel: string
default_title?: string
open_at_install?: boolean

Whether or not the sidebar is opened at install. Default is true.