It doesn't support the desktop wallet yet, you can read here what you need to do in order to receive the airdrop: https://www.reddit.com/r/Neblio/comments/83cw76/neblio_holders_be_prepare_for_the_trifid_ntp1/
I think that the easiest way is just to create an Orion wallet an transfer you Neblio there. That's what i did anyway.