As of January 31st, 2014, this fork of 4chan X is discontinued.
Maintaining it was time-consuming, and I've just gone back to being anon again.
Try a derivative of my fork, ccd0's, or give Appchan X or Mayhem's 4chan X a try.
    
    
          
      
        - Enhancing
          
            - Toggleable Catalog Links
- External Catalog Support
- Archive Redirection for 404'd Threads
- Customizable Keybinds
- Time Localization + Custom Formatting
- Custom Formatting for File Information
- Comment & Thread Expansion
- Index & Reply Navigation
- Styles and Theming
- Custom Navigation
- Ban Checking
- Custom CSS
- Emoji
 
- Linkification
          
            - Clickable Links
- Video/Audio Link Embedding & Titles
 
- Filtering
          
            - Anonymizer
- Regular Expressions Based Filter
- Thread & Reply Hiding
- Optional Stubs
 
- Imaging
          
            - Image Expansion
- Image Fit: Full, Width, Height or Screen
- Image Reload on Loading Error
- Image Hover
- Customizable Sauce Links
- Reveal Spoilers
- Image Prefetching
- Remove Posts Without Images
- Higher Quality Thumbnails
 
- Menu
          
            - Drop-down Menu
- Report Link
- Delete Link
- Download Link
- Archive Link
- Embed Link
- Thread & Reply Hiding Link
 
- Monitoring
          
            - Fully Customizable Thread Updater
- Scrolling onto New Posts
- Unread Count with Favicon Indicator
- Post In Title
- Thread Stats
- Merged Updater & Stats
- Thread Watcher
- Auto Watch on Thread Creation & Reply
- Color User IDs
- Marked Own Posts
- Remove & Indicate Spoilers
 
- Posting
          
            - Quick Reply
- Image and Text Dumping
- Multiple File Selection, Drag and Drop Files and Thumbnails
- Thread Creation with Auto-Noko
- Detect and Prevent Upload Failures
- Automatic Quote from Text Selection
- Auto-Hide
- Cooldown
- Auto-Posting
- Captcha Caching with Shift + Enter
- Captcha Reloading on Backspace
- Persistent QR
- Remember QR Size, Name, E-Mail, Subject, Image Spoiler, and Sage
- Per Board Personas
- Markdown
 
- Quoting
          
            - Quote Backlinks & Custom Formatting
- Quote Inline
- Quote Hash Navigation
- Quote Preview
- Quote Highlighting
- Resurrect Dead Quotes from Archives
- Indicate OP Quotes
- Indicate Cross-thread Quotes
- Forward Hiding