Sorry this bug shouldn't have expired as the required information was
provided.
Manfred, in your handlers.json the action for application/pdf is 2,
which corresponds to "Always Ask". Is it not what happens when you open
a PDF file from within firefox? Or is it that the behaviour differs when
it
[Expired for firefox (Ubuntu) because there has been no activity for 60
days.]
** Changed in: firefox (Ubuntu)
Status: Incomplete => Expired
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Here is the desired handlers.json file.
Because you see no problems on a fresh installed machine, I try again on
my fresh installed machine and I have some new information.
When using an external link (https:///... /file.pdf") firefox asks as
desired. When I use a local file resource (from
Just tested in a clean and fully up-to-date focal VM, and this works as
expected: by default PDF files are opened in the built-in pdfjs viewer,
but when I change the setting to use the system's default application,
they are opened in evince.
Can you run the following command in a terminal and
