GitHub Repo Creation Date Extension

A browser extension that displays the creation date of any GitHub repository.

Links

• Chrome: https://chromewebstore.google.com/detail/github-repo-creation-date/pdhoihimginoiikkbbmbdpfclbbmpiae
• Firefox: https://addons.mozilla.org/en-US/firefox/addon/github-repo-creation-date/

Local Installation

Chrome / Edge / Brave

1. Open your browser and go to chrome://extensions/.
2. Enable Developer mode (toggle in the top-right corner).
3. Click Load unpacked.
4. Select the folder where you saved this extension.

Firefox

1. Open Firefox and go to about:debugging#/runtime/this-firefox.
2. Click Load Temporary Add-on....
3. Select the manifest.json file in the extension folder.

How it Works

The extension injects a small content script that:

1. Locates the JSON metadata embedded by GitHub in a <script> tag.
2. Recursively searches for the createdAt property within the repository object.
3. Formats the date and injects it into the repository about area.