GitHub Navigator by Sarcastic Bird

GitHub Navigator puts every organization and repository you have access to one click away. No more hunting through GitHub's left sidebar or typing github.com/org/... from memory.

Features

Toolbar popup listing every org you belong to, each expandable to show its repositories.
Search and filter across all orgs and repos at once.
Three view modes: alphabetical tree, tree sorted by your recent commits, and a flat recent-activity list.
Hybrid sort option — repos you've pushed to recently float to the top of each org.
Results are cached for 5 minutes with stale-while-revalidate, so the popup opens instantly.
Click any repo to open it in a new tab; click the org row to jump to the org page.
Setup

Install the extension.
Click the toolbar icon, then follow the prompt to add a GitHub Personal Access Token.
Your token needs the read:org and repo scopes and must be a classic token. Fine-grained tokens do not expose the org-membership API this extension relies on.
The token is stored in your browser's local extension storage and is only ever sent to api.github.com. It is never transmitted to any other server.

Source and issue tracker: https://github.com/sarcasticbird/github-navigator

Privacy

The only data collection is your GitHub Personal Access Token, which you provide yourself and which is stored locally in the browser. It is used exclusively to authenticate requests to the GitHub API. Nothing is sent anywhere else, and there is no analytics or telemetry.