Cookies exception list / Configuration Synchronization

[MatyMax]

I've been using Firefox with the Firefox Account for synchronization, so when i reinstall i cant come back to how i left it, but one things missing, and that's is the Cookie exception List (i delete all my cookies on exit, so i have a hand-made list of adresses where i want cookies to be preserved), this could be saved into the account, or a way to save all the configuration into the account, that way if i just need to reinstall NOT because of errors with Firefox, i can still have all my configuration (when signing in with an account to Firefox, it can prompt if do you want to load the last configuration).

I tried searching for this option if it already exists, but i don't seem to find it.

[Jon]

(Note: similar ideas have been merged into this thread)

[EB2]

In version 126.01, managing cookie exception list does not work.  It will not save url site as ALLOW in the exception list.  After exiting and restarting Firefox, the exception list is always empty.

This exception list worked fine in prior versions prior to upgrading.

How do I fix this?