https://hive-keychain.com/ is the place to get the download.
Put in your posting key, memo key and active key.
After that you won't need to mess with your keys, again.
Well, unless you have to reboot it from scratch.
What you do to help with that is download the .kc file and save that.
Then if you have to reset the extension you just import the .kc file and you're done.