today I started getting 403 error – only when I click “Save all tabs”.
Everything else works fine.
I did try to update the pluing today (notified by Envato market that there is a new version), but after seeing the version is the same, I did not proceed.
403 error means an authorization issue on the server side, when the server has issues with the browser itself. It’s usually nothing serious, most of the time it’s related to a browser plugin/update. Usually clearing the browser cache and logging in and out of the administrator area resolves it. If no luck, then restarting the computer could also help, if it’s related to the network.