Last.fm Artwork Upload Helper от Chris

⚡ Missing Artwork Indicators - Highlights missing artwork on the page you're on
⚡ Seamless Integration - Detects Last​.fm upload pages and injects a helper panel
⚡ Multi-Source Search - Search across 20+ platforms via COV - Cover Search Engine
⚡ Direct Upload - Uploads artwork directly from search results without manual downloads
⚡ Image Compression - Automatically compresses images larger than 5 MB
⚡ Themes - Choose between light and dark mode

Select up to nine platforms to search:
Streaming: Amazon Music, Apple Music, Deezer, Spotify, TIDAL
Stores: Bandcamp, Beatport, BOOTH, iTunes, OTOTOY, Qobuz
Databases: Discogs, MusicBrainz, VGMdb, THWiki
Regional: Bugs (KR), FLO (KR), Gaana (IN), KKBOX (TW), KuGou (CN), LINE MUSIC (JP), Melon (KR)
Other: Fanart​.tv, Soulseek, SoundCloud

Select your preferred country for localized results:
Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Korea, Spain, Taiwan, UK, US

This add-on is also available as a user script on Greasyfork.