Userscript to trick websites into thinking the tab is always on focus

1. Download the Tampermonkey browser extension

2. Click here to install the userscript

3. Toggle the userscript on/off from the Tampermonkey dashboard

Always on focus is a lightweight userscript that prevents websites from knowing that you switched tabs or unfocused the window. This is a fork of this userscript that adds these:

• Disables the Page Visibility API

• Disables the window.onblur() event and and sets window.hasFocus() and window.onFocus() to always true (Ex.)

• Removes the visibilitychange and blur event listeners (Ex.)

Here is an example website that changes color when the window isn't focused: