"This page does not have any cookies"
Doesn't show JSESSIONID cookie seen with Fiddler.

can't save my change

Compatible with Waterfox, this add-on has a simple, but effective interface for fast cookie management (for when one doesn't need all the information about a cookie, just "nuke" or save them). It only shows the cookies of the current context (container), so there is no risk of destroying cookies of other "jars".

Changing a cookie value, saving, and reloading the page will use the old cookie value

good alternative to editthiscookie since it only available on chrome

Simple et efficace pour voir, éditer et détruire les cookies du tab courant. Et pour en créer aussi !

Exactly what I wanted.

Easy to use. Very good add-ons.

The best Cookie Editor for Firefox Quantum. Simple, clean minimal interface. Works on mobile too, just perfect.

This extension works great on Firefox mobile. Highly intuitive and we'll made

Simple, straight-forward, and does what it says should.