Hi ostcandt, could you explain what you want to do in more detail? As general background, cookie names and values are set by websites. They can do that in two ways: (1) Send a Set-Cookie header with the page (2) Use a script in the page To see what cookies have been set for the current page, you can open the Storage Inspector tool (Shift+F9). If you like, you also can delete individual cookies there. More info on this tool: https://developer.mozilla.org/docs/Tools/Storage_Inspector

See also: *https://support.mozilla.org/en-US/kb/cookies-information-websites-store-on-your-computer