The stylish addon was pulled from the chrome and firefox store because of privacy issues. If you are using this addon, I would recommend uninstalling it. The original developer for stylish sold off the addon a while back and it fell into the wrong hands after that. That original developer forked off his stylish into stylus which doesn't have any privacy issues in it. You should be able to import your stylish layouts into stylus however stlyus already has the same layout in it, you just need to click on the find styles link.
Just be warned ZAM doesn't condone using this addon/extension or any addons or support them working for the site. This is entirely something people use at their own expense to make websites look how they want, if this addon/extension at any point becomes a problem, ZAM has nothing to do with it.
Edited, Jul 6th 2018 12:11am by Gidono