Force pages to always think the tab is visible/focused; optionally spoofs mouse as always "in page" and blocks exit/enter intent; shows a tiny popup when a visibility or mouse check is detected
this userscript forces all websites to always think the tab is visible and focused. it blocks or rewrites all known methods that pages use to detect tab visibility or focus state, and optionally notifies you when those checks happen.
document.visibilityState → always returns "visible"document.hidden → always returns falsewebkitVisibilityState, mozHidden, msHidden, etc. → overridden the same waydocument.hasFocus() → always returns truevisibilitychange, webkitvisibilitychange, mozvisibilitychange, msvisibilitychangepagehide, pageshow, freeze, resumefocus / blur events (configurable to reduce noise)when a site tries to attach an event listener, the script wraps the handler so it always sees the document as visible.
CONFIG object:
properties: notify when visibility properties are readhasFocusCall: notify when document.hasFocus() is calledaddListener: notify when a site registers an event listenerinvoke: notify when a wrapped event listener is invokedsuppressFocusOnEditable: prevents noisy popups when typing in inputs/textarea/contenteditableObject.defineProperty to lock down visibility state valuesdocument-start so it applies before most site scripts@all-frames true)you can use these two websites to check if the userscript is working: