Follow these troubleshooting instructions below.
1. Empty the temp files (cache) and cookies for Firefox.
See these instructions:
2. Check that Firefox is allowing third-party cookies.
MasterCook sets a third-party cookie in your web browser in order for the web importer to function. See how Firefox can block it:
Make sure you enable third-party cookies for MasterCook.com:
3. Restart Firefox and verify everything is working correctly now.
Go to this web page:
Use the Add to MasterCook bookmarklet with this recipe and see if it works.
CAUTION: if you have a program that wipes out cookies for your web browser such as an internet security program or web browser add-ons, it could prevent the web importer from working correctly. Disable any security-type add-ons and see if that solves the problem. One add-on that caused a problem for a MasterCook user is Privacy Badger.
If you still have problems, feel free to contact us at MasterCook Support.