Extension provides access to the GitHub search bar. Click the icon or press CTRL(CMD)+SHIFT+F to show the search bar. Type in the search phrase and press ENTER. Results will display in the current tab. If you have already a binding for the default shortcut, extension will NOT overwrite it. You can set your own in Chrome settings.
You can Follow the below Step By Step procedure to install the GitHub Search Tool Chrome Extension to your Chrome Web browser.
It is the GitHub Search Tool Chrome extension download link you can download and install Chrome Browser.
Open GitHub repositories in online web IDE
Automatically adds repository size to GitHub's repository summary
Easily search GIPHY to add a GIF into any GitHub comment box.
Gives you approximate count of lines of code on GitHub
Enable code folding when viewing files in GitHub.
Zenhub – Project Management Inside GitHub