One click imports JASRAC works into MusicBrainz (name, iswc, type, credits, edit note, sort name, search hint) and マス歌詞®（mass-lyrics） and wikipedia links. It will do the same magic in work editor. Work links to both JASRAC and 音楽権利情報検索ナビ (ex-音楽の森 aka MINC and Music Forest) and back to MB

Batch add entities to MusicBrainz collection and copy MBIDs from entity pages, search result or existing collections.

Import audio files and collections into Musicbrainz. Also supports scanning bookmarks and search results for MusicBrainz relations.

musicbrainz.org: Copy dates on relevant recording AR fields

musicbrainz.org: Set best-guess related works

musicbrainz.org: Convert to "string" instrument AR on selected recordings

musicbrainz.org: Set attributes (live, partial) on selected recordings

Tries to detect artist names in artist and track fields and allows you to extract those. Found entries are added to the corresponding editor for fast adding.

Import releases from Free Music Archive

musicbrainz.org: Show performers & replace associated recording artst from a Work page

musicbrainz.org: Replace associated recording artist from an Artist page

musicbrainz.org: Show alias number on main release pages

musicbrainz.org: Show discid number on main release pages

musicbrainz.org: Mark recordings not linked to any work on a performer page

musicbrainz.org: Show performance durations on a Work page

Allows you to change the order of artist names in any of the multiple artists editors. NOTICE: This will remove any artist lookup data already present in the editor. You have to assign this manually again.

Hidden links include fanpage, social network, etc. (NO duplicates) Generated autolinks (configurable) includes plain web search, auto last.fm, Discogs and lyrics searches, etc. Shows begin/end dates on URL and provides edit link. Expands Wikidata links to wikipedia articles.

musicbrainz.org: MOUSE-LESS EDITING! Cleverly focus and refocus fields in various MusicBrainz edit pages and tracklist Up Down key navigation

chatlogs.metabrainz.org: swicth between #musicbrainz and #metabrainz channels; centre highlight message (for post permalink URL)

musicbrainz.org: Highlights releases, release-groups, etc. that you have in your collections (anyone’s collection can be loaded) everywhere

musicbrainz.org: In some pages like edits, blog, forums, chatlogs, tickets, annotations, etc. it will prefix entity links with an icon, shorten and embelish all sorts of MB links (cdtoc, entities, tickets, bugs, edits, etc.).

Has been renamed to ymail-basic. DIRECT LINKS TO MUSICBRAINZ. Please uninstall and install the new one.

musicbrainz.org + acoustid.org: Remember last edit notes

musicbrainz.org: CAA front cover art archive pictures/images (release groups and releases) Big illustrated discography and/or inline everywhere possible without cluttering the pages

musicbrainz.org: Mass PUT or DELETE releases in a collection from an edit search, an other collection, or a tag