Alex Bennée has written an Edit with Emacs extension for Google Chrome. It's Chrome's answer to Firefox's "It's all text" extension, which makes composing emails, blog posts, and other long-form text in a browser a lot more tolerable. (Hooray!)
Since Chrome extensions can't spawn arbitrary processes, the Edit with Emacs extension requires the cooperation of an additional edit server that can. The edit server is implemented in elisp and is bundled with the extension.
- Visit the extension gallery page and click "Install".
- In Chrome, click on the wrench menu, Extensions, "Options" under "Edit with Emacs", and follow the instructions there for setting up the edit server.
- After configuring the edit server, click "Test Edit Server" to make sure everything is working.
- Henceforth, in any new tabs you open, you'll see a little "edit" button next to any textarea elements, which you can click on to pop up a new editor frame. (You can also double-click on the textarea.)