eventsCommon types used by APIs that dispatch events.Types events.Rule Description of a declarative rule for handling events. events.Event An object which allows the addition and removal of listeners for a browser event. events.UrlFilter Filters URLs for various criteria. If any of the given criteria match, then the whole filter matches. Browser compatibilitydesktopmobileChromeEdgeFirefoxOperaSafariFirefox for AndroidSafari on iOSeventsChrome – Full supportChrome58Toggle historyEdge – Full supportEdge14Toggle historyFirefox – Full supportFirefox50Toggle historyOpera – Full supportOpera45Toggle historySafari – Full supportSafari14Toggle historyFirefox for Android – Full supportFirefox for Android50Toggle historySafari on iOS – Full supportSafari on iOS15Toggle historyEventChrome – Full supportChrome58Toggle historyEdge – Full supportEdge14Toggle historyFirefox – Full supportFirefox53Toggle historyOpera – Full supportOpera45Toggle historySafari – Full supportSafari14Toggle historyFirefox for Android – Full supportFirefox for Android53Toggle historySafari on iOS – Full supportSafari on iOS15Toggle historyEvent.addListenerChrome – Full supportChrome65Toggle historyEdge – Full supportEdge14Toggle historyFirefox – Full supportFirefox59Toggle historyOpera – Full supportOpera52Toggle historySafari – Full supportSafari14Toggle historyFirefox for Android – Full supportFirefox for Android59Toggle historySafari on iOS – Full supportSafari on iOS15Toggle historyEvent.addRulesChrome – Full supportChrome65Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera52Toggle historySafari – No supportSafariNoToggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historySafari on iOS – No supportSafari on iOSNoToggle historyEvent.getRulesChrome – Full supportChrome65Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera52Toggle historySafari – No supportSafariNoToggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historySafari on iOS – No supportSafari on iOSNoToggle historyEvent.hasListenerChrome – Full supportChrome65Toggle historyEdge – Full supportEdge14Toggle historyFirefox – Full supportFirefox59Toggle historyOpera – Full supportOpera52Toggle historySafari – Full supportSafari14Toggle historyFirefox for Android – Full supportFirefox for Android59Toggle historySafari on iOS – Full supportSafari on iOS15Toggle historyEvent.hasListenersChrome – Full supportChrome65Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera52Toggle historySafari – No supportSafariNoToggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historySafari on iOS – No supportSafari on iOSNoToggle historyEvent.removeListenerChrome – Full supportChrome65Toggle historyEdge – Full supportEdge14Toggle historyFirefox – Full supportFirefox59Toggle historyOpera – Full supportOpera52Toggle historySafari – Full supportSafari14Toggle historyFirefox for Android – Full supportFirefox for Android59Toggle historySafari on iOS – Full supportSafari on iOS15Toggle historyEvent.removeRulesChrome – Full supportChrome65Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera52Toggle historySafari – No supportSafariNoToggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historySafari on iOS – No supportSafari on iOSNoToggle historyRuleChrome – Full supportChrome58Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera45Toggle historySafari – No supportSafariNoToggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historySafari on iOS – No supportSafari on iOSNoToggle historyUrlFilterChrome – Full supportChrome58Toggle historyEdge – Full supportEdge79Toggle historyFirefox – Full supportFirefox50Toggle historyOpera – Full supportOpera45Toggle historySafari – Full supportSafari14Toggle historyFirefox for Android – Full supportFirefox for Android50Toggle historySafari on iOS – Full supportSafari on iOS15Toggle history Note: This API is based on Chromium's chrome.events API. This documentation is derived from events.json in the Chromium code.