Keeweb connection fails on Ubuntu 21.10

[johndevs]

When trying to enable the plugin for firefox in Ubuntu 21.10 you get this error:

Error:
2021-11-23T18:34:43.468Z [browser-extension-connector] Error installing extension: Error: ENOENT: no such file or directory, unlink '/home/john/.mozilla/native-messaging-hosts/net.antelle.keeweb.keeweb_connect.json'

This is because in Ubuntu 21.10+ Firefox will be installed via Snap instead of via apt (see https://www.omgubuntu.co.uk/2021/09/ubuntu-makes-firefox-snap-default )

When installing via snap the .mozilla folder is no longer located under the $HOME/.mozilla directory but under $HOME/snap/firefox/common/.mozilla. This breaks the plugin.

Workaround:

sudo snap remove firefox
sudo apt install firefox

Using the non-snap version of firefox works, using the snap version does not.

[antelle]

How do other apps install itself as native hosts with the snap version of Firefox?

[johndevs]

I don´t think it is possible under flatpak due to sandboxing according to https://bugzilla.mozilla.org/show_bug.cgi?id=1621763 (KeePassXC seems to have the same issue)

[johndevs]

How KeepassXC worked around the issue for their plugin, maybe the same approach could be taken?

https://discourse.flathub.org/t/how-to-run-firefox-and-keepassxc-in-a-flatpak-and-get-the-keepassxc-browser-add-on-to-work/437?u=rugk

[dyc3]

In ubuntu 22.04, it's no longer possible to install firefox without using snap (unless you use mozilla's PPA). apt install firefox will effectively do snap install firefox instead.