1667549 - `Always Ask` opening dialog suggests a bad default opener for attached PDF files in Write window

Status: NEW

(Thunderbird :: General, defect)

Description

[uzivatel919]

Attachment: New message.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.135 Safari/537.36 OPR/70.0.3728.178

Steps to reproduce:

Try open PDF attached to new message.

Actual results:

Dialog show bad default program.

Expected results:

It should 1) be opened in TB previewer or 2) offer previewer and Adobe Reader.

Comment 1

[Richard Marti (:Paenglab)]

Maybe Mark can help.

Comment 2

[Mark Banner (:standard8)]

The default there is probably the default from the operating system. Unfortunately we can't do much about what your operating system reports.

I think there's two things that Thunderbird probably wants to do:

1. Add the "Open in Thunderbird" option to the external handler, similar to what Firefox did in https://hg.mozilla.org/mozilla-central/rev/5946b607dbdd892681f3cfb98dcdee805c26140e - I just tried it but it didn't work because the attachment is seen as HTML.

2. Adjust the compose window handler to open pdfs directly in a new tab - unfortunately the UX may be a little strange there as you'd be opening a new window or switching back to an old one.

Comment 3

[Thomas D. (:thomas8)]

(In reply to Mark Banner (:standard8) from bug 1667549 comment #2)

The default there is probably the default from the operating system. Unfortunately we can't do much about what your operating system reports.

I think there's two things that Thunderbird probably wants to do:

1. Add the "Open in Thunderbird" option to the external handler, similar to what Firefox did in https://hg.mozilla.org/mozilla-central/rev/5946b607dbdd892681f3cfb98dcdee805c26140e - I just tried it but it didn't work because the attachment is seen as HTML.

Adding "Open in Thunderbird" to the Always ask dialog is bug 1734900.
"...didn't work because the attachment is seen as HTML" looks very reminiscent of bug 1698140.

2. Adjust the compose window handler to open pdfs directly in a new tab - unfortunately the UX may be a little strange there as you'd be opening a new window or switching back to an old one.

So iiuc this part remains unique for this bug. Maybe already on record?