Different setting for every Firefox container

[CharoSW]

There is some unexpected behaviour with the Firefox version. Each individual Firefox container, a feature present in Firefox 57+, seems to get its own settings. For every container you must replicate the settings you want, which may not be all the difficult but seems somewhat weird when the data presented is for the whole Firefox session

[ibillingsley]

I need to move the settings from localStorage to the chrome.storage api. This also causes the settings to be lost if you clear your cookies in Firefox.

[ReporterX]

It is tedious to copy the settings if you have many containers. You have to copy again to all of them if you make some changes in future.

Also some people use Temporary Containers. You will have to copy every time for the new temporary container which is impracticable.