Obtaining extension identifier from Chrome Extension Web Store:
Lets consider 'Postman Interceptor' as the extension to be added to the extension repository:
- Go to Google Chrome Web Store.
- Search for the extension using the search bar.
- From the URL address bar, select the extension identifier which is located between "/" and "?" as displayed in the image below.
- Copy the identifier and paste it in the Extension Identifier field present in the Extension Repository.