Firefox stores information on built-in and added-on extensions in the extensions.json file. This page provides a brief summary table showing what it found.
Step 1: Load File
Drag and drop extensions.json onto the empty text box. This file is not sent to the network, it is only read within this page in Firefox.
Or open using:
Note: To try a different file, reload this page (Windows: Ctrl+r. Mac: Command+r). Or click the reload button in the address bar.
Step 2: Generate Table / Save File