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I'm trying to make Flatpak Libreoffice the default app for opening files in Thunderbird.

At the moment, Thunderbird (also a flatpak) is using System Handler as default. I tried changing it but cannot find where the libreoffice executable is on my system.

I found the libreoffice .desktop files in /var/lib/flatpak/exports/share/applications but Thunderbird doesn't seem to recognise the app?

To Do
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1 Answers1

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You were very close. I had the same problem. I want to use Microsoft Edge to open links in Thunderbird.

In thunderbird 102.10.0(64 bit) I went to Edit -> Settings and scrolled down to Files & Attachments.

For Content Type https I selected action Use Other and then selected /var/lib/flatpak/exports/bin/com.microsoft.Edge

and now Microsoft Edge is invoked when I click on a link in Thunderbird.

Don
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