These are the default shortcuts, they can be customized in Chrome and Firefox, but not yet in Safari. Each side can close the socket (for example by closing the window) and the session will be automatically over.

Every change will be transmitted to the other side. When you activate GhostText, the browser will try contacting the server in the text editor (at the port specified in the options) and open a WebSocket connection. A HTTP and WebSocket server in the text editor.Refer to the documentation of each extension. Notice: in some editors you’ll need to run the Enable GhostText command to start the server. Once you have installed both browser and editor extensions, you can activate GhostText in the current browser tab by clicking its icon in the toolbar or by using a keyboard shortcut. You can create more extensions for your favorite editor! Refer to the protocol document. Most editor extensions are authored by third parties. Install both extensions and, if necessary, start the GhostText server in the editor’s extension. GhostText is a browser extension that connects to your editor via its own extension. Whenever you’re writing more than a little snippet of code anywhere on the web, activate GhostText to open your preferred text editor and enjoy your own development environment. 👻 GhostText - Use your text editor in the browser

Opera extensions text editor