NfNitLoop ("Cody Casterline 🏳️🌈") wrote:
Found the problem:
with XDG_CURRENT_DESKTOP=COSMIC, xdg-open was using ~/.config/cosmic-mimeapps.list
While that file *did* correctly list my preferred browser as the default for x-scheme-handler/http and https, it did *not* list it for text/html, which is what gets used when opening local .htm[l] files.
Fixed!