Event Listener Blocker & Focus Lock

Blocks detection of focus/tab/clipboard events without breaking user behavior; applies globally, incl. iframes/shadow DOMs. MAY break some functions.

Verze ze dne 08. 11. 2025. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

Autor
ShortTimeNoSee
Hodnocení
0 0 0
Verze
1.13
Vytvořeno
16. 07. 2025
Aktualizováno
08. 11. 2025
Size
6,3 KB
Licence
MIT
Spustit na
všech stránkách

This userscript intends to generally prevent websites from detecting specific user actions by blocking their ability to listen for certain browser events. It intercepts and disables the registration and dispatch of events like blur, focus, visibilitychange, copy, cut, contextmenu, selectstart, and others commonly used to track focus changes, disable right-click, or monitor clipboard activity.

  • Overrides addEventListener, removeEventListener, and dispatchEvent for targeted event types.
  • Forces document.hidden to false and visibilityState to 'visible'.
  • Forces document.hasFocus() to always return true.
  • Clears any existing onblur, onfocus, or visibility handlers.
  • Applies to iframes and shadow DOMs as they're created.
  • Automatically re-applies every second to persist through dynamic changes.

Intended for use cases where sites try to monitor user attention or restrict standard browser interactions through JavaScript.