Hello Matijs, On Sat, Jun 02, 2018 at 09:05:28AM +0200, Matijs van Zuijlen wrote: > I'm guessing this is what is edited under Attachments/Incoming? I'm > still surprised by the defaults presented. Oddly, for PNG Image, the > default is Firefox.
this you can easy check. ;) Backup the file, change an entry and diff the files. > In addition to checking the above, I have also cleaned up the settings > for my Gnome desktop environment. There were a lot of old .desktop files > lying around, some indeed setting thunderbird or icedove as a potential > browser. As a result, in Gnome's Settings application under Default > Applications, the Web option finally no longer listed Thunderbird as an > option, and had Firefox set as its value. All seemed well. > > However, this morning I noticed: > > $ xdg-settings get default-web-browser > thunderbird.desktop > > I immediately checked Gnome's settings, and it still listed Firefox. > > Then just now, I ran: > > $ xdg-open https://www.matijs.net/ > > .. and it seems this tried to open Thunderbird, although I can only tell > from the AppArmor messages appearing, since nothing is actually shown. > In Gnome's settings, the Web entry now again shows Thunderbird. > > I'm not sure what's going on here or where xdg-settings gets its > information. >From your local config ~/.config/mimeapps.list. https://wiki.debian.org/HOWTO/DefaultWebBrowser xdg-open uses local configs is they are done and this is mostly the case. Change the default browser to what ever you like here and your problem will go away I guess. Regards Carsten