The best for me still Rated 5 out of 5 stars

I will still continue to use you Mr. Monster like I've been for years. Thankfully, it is still working after all these updates, including FF29. This is seriously one of the most important extensions snce cookie management is critical for any one that wants some privacy on random sites. I just didn't like the other extensions like this one. It has exactly what I need - except for importing and exporting cookies and a master cookie decision file. :-)

This review is for a previous version of the add-on (1.2.0).