...Users can add, edit, and manage markdown documents in the browser, and because it uses modern web technologies, the app caches itself and local data to work seamlessly when a network connection is unavailable. While the backend server that used to support hosted functionality is no longer maintained, the core frontend still offers a slick note-taking experience. Crossnote’s design takes inspiration from tools like markdown preview extensions and collaborative editors.
QuickFox is a multi-tab note taking add-on for Firefox that uses the integrated bookmarks system or a single sqlite database to store notes. Therefore, if you already have either a bookmarks synchronization add-on (e.g: XMarks) or a file synchronization software (e.g: Dropbox, SugarSync, Syncplicity), your notes will be synchronized automatically.