• Responsive design • Device Preview • Extract with batch export • Improved code editor with Emmet support and linting • Live View • Reengineered with 64-bit architecture • Starter templates • Live Guides, Insert and Highlight • Element Quick View • Live View Property Inspector • CSS Designer • Site Management - Certificate Support • Help Center • Sync Settings • Edge Web Fonts • jQuery UI Widget • Streamlined HTML5 audio and video • Faster HTML5 element insertion • Improved FTP performance • Enhanced jQuery Mobile support • CSS3 transitions • Updated Multiscreen Preview panel • Integrated CMS support • CSS Enable and Disable • Enhanced support for Subversion • PHP custom class code hinting • Site-specific code hinting • Enhanced CSS starter pages • Simple site setup • CSS3/HTML5 support • jQuery Mobile integration • Code hinting for Ajax and JavaScript frameworks • Adobe Photoshop integration

• Sync allows you to keep your browsing history, passwords, bookmarks, preferences and tabs in sync across different devices (computers) in a secure way. • Tabbed browsing gives you a better way to surf the net. You no longer have to open one page at a time. With tabbed browsing, open several pages at once with one click. Plus, your homepage can be multiple pages, in tabs. And if you mistakenly close a tab or window, functionality to Undo Closed Tab or Window helps you bring it back to continue working with it. • Session restore brings back all your open windows and tabs after the rare occasion that SeaMonkey crashes—and if you wish even when you close and reopen the browser or restart your computer. However, crashes should be rare nowadays because crashing plug-ins will no longer take the whole application down. • SeaMonkey's powerful Add-ons Management provides almost infinite possibilities to extend your Internet experience both through installing additional functionality created by others and even freely developing your own extensions and providing them to the rest of the SeaMonkey community. • SeaMonkey's unique Data Manager serves as a central management interface for all kinds of site-specific data, including cookies, permissions (e.g. image blocking), preferences, passwords and form data. • Lightweight themes (Personas) let you give your SeaMonkey a personal touch through simple theming. You can choose from thousands of Personas! • Feed detection notifies you when web pages offer RSS or Atom feeds, and feed preview lets you view their contents and choose a reader with which to subscribe to those—including an internal reader in the Mail & Newsgroups component of SeaMonkey. • Smart Location Bar enables you to search your visited web pages as you type into the browser's location bar and find what you want to re-visit as quickly as possible by learning which pages you visit frequently. • Popup blocker lets you surf the web without interruption from annoying ads. • Find as you type gives you another way to navigate a page. Just start typing to jump from link to link or to find a word or phrase within a page. • Safe Mode can help you solve problems that might occur, e.g. with incompatible add-ons. If you need to ask someone for support, the Troubleshooting Information page provides quick access to basic technic