API reference
From GreaseSpot Wiki
Note: All GM_* functions, including, were blocked in version 0.3.5, due to security vulnerabilities. These functions were restored, with updates making them secure, in version 0.5.
Note: All GM_* functions, including, were blocked in version 0.3.5, due to security vulnerabilities. These functions were restored, with updates making them secure, in version 0.5.