[westurner]

Firefox can store bookmark tags, but they don't save with the bookmark export without reading the SQLite database with a different tool: "Allow reading and writing bookmark tags" (9 years ago) https://bugzilla.mozilla.org/show_bug.cgi?id=1225916

With bookmarks as JSONLD Linked Data, it's simple to JOIN with additional data about a given URI.

The WebExtensions Bookmark API does not yet support tags.

[cxr]

Firefox's bookmarks manager exports tags just fine (whether to JSON or the bookmarks.html format). WebExtension APIs are a completely separate issue.

[westurner]

Ah my mistake

[discardedrefuse]

Not only that...but Firefox Mobile doesn't support tags either!