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Get URL of new tab opened by JavaScript in Firefox

1 min read

  1. Open the browser console with Ctrl + Shift + J.
  2. Select multiprocess mode.
    1. “Parent process only” mode only captures the main Firefox browser process, not the child processes that render web content.
  3. Click the gear icon on the right and enable network monitoring in the popup menu.
  4. Ensure “requests” is selected.
  5. (Optional) clear old logs with the trash bin icon on the left.
  6. Click the link and check for request logs in the browser console.

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