According to seb128, upstream was working on a solution to this via portals a while back[1], but I don't know about its current status; so I'll try following up with them to see if they may have any updates about it.
[1] https://forum.snapcraft.io/t/making-it-easier-to-migrate-data-from- other-browsers-into-firefox/36721/4 ** Changed in: firefox (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2065411 Title: Firefox Snap can't import data from Google Chrome To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2065411/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
