The official Piral developer tools browser extension.
Hitsteps Visitor Manager
Get your website analytics insight and get notified about updates and live support requests in your dashboard
GitHub (Enterprise) Projects Plus
[Deprecated] Adds advanced labels management and other functionality to GitHub.
Arrgh Some Patchy Goodness to GitHub
Novibyte Issues Plugin
Jira Issues Management
Service Worker Detector
This extension detects if a website registers a Service Worker.
Git Analytics made simple.