Awesome cross-extension APIs that enable browser extensions to integrate with each other.

• Resources
• Applications
  • Streamlink Helper
• Features
  • Notification Sound
  • Multi-Account Containers
  • Temporary Containers
  • Tree Style Tab
  • Wikipedia Peek

• Overview of why and how extensions can integrate

Lets other extensions launch Streamlink via its integration.

• Firefox

Plays a user defined notification sound when extensions inform it that they're showing a notification.

• Firefox

Get information about assigned default containers for URLs.

• Firefox

Open an URL in a temporary container and check if a container belongs to the extension.

• Firefox

Vertical tab bar with tree grouping for tabs. Extensions can expand exposed features and modify tab states, order and hierarchy.

• Firefox

Shows a link preview on hover. Other extensions can register plugins based on the given template to provide preview information.

• Firefox
• Chrome
• Opera