Follow these steps to enable pop-ups for Mozilla Firefox:
- Click the Open Menu button (it looks like 3 horizontal bars, located in the top right corner of the browser).
- Click Options (for Mac, start from the Firefox menu using the Finder and select Preferences). You can also use the Tools menu if you press F10 or the ALT key.
- Click the Content tab.
- In the Pop-ups section, click Exceptions.
- Enter qbo.intuit.com and click Allow.
- Enter qdc.qbo.intuit.com and click Allow
- Click Save.
- Restart Firefox.