magiruuvelvet/block-shortcuts

Browser extension to disallow websites from registering global keyboard shortcuts.

Block Shortcuts

Browser extension to disallow websites from registering global keyboard shortcuts.

EXPERIMENTAL!

Use case

This extension is for you if you don't want websites to register global keyboard shortcuts in your browser window. It does so by intercepting the addEventListener function on the Window and Document classes, as well as intercepting the listener callback function itself (when registered via Window or Document).

Every time a key event happens in your browser window, the interceptor checks if the associated key event has a modifier key enabled (Ctrl, Shift, Alt, Meta) and blocks the execution of the original listener callback function.

Built-in browser shortcuts (like Ctrl+A to highlight all text) are NOT affected by this interceptor and should still function as intended. Event listeners added to input fields are not affected as they don't directly relate to Window or Document. The input field must have focus anyway for the key event to work. This extension only focuses on global shortcuts for now to prevent running code when no element seems to have focus.

block-shortcuts's Issues

possible issues with click handlers on web apps

Some web applications are breaking in unexpected ways when intercepting keyup and keydown events, even though the original listener function is executed normally.