Omni Copy от 𝖊𝖈𝖍𝖔

Omni Copy is an open source Firefox and Chrome extension that makes copying text effortless.
Just select what you need and it's instantly copied, or use a floating button if you prefer.
You control where it works — keep it out of password fields and text editors so you don't accidentally copy while typing. Simple, configurable, and respectful of your workflow.

Omni Copy does not collect, store, or transmit any user data. All copying happens locally on your device — your clipboard and selections are yours alone.