1410311 - Opening pdf with Nightly results in attempted download of .pdf.part files and many windows opening

Status: RESOLVED DUPLICATE of bug 218257

(Firefox :: File Handling, defect)

Description

[miliu]

Attachment: pdf.part files

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:58.0) Gecko/20100101 Firefox/58.0
Build ID: 20171019222141

Steps to reproduce:

I restarted my MacBook at about 8pm PDT Oct 19 and after booting, Nightly installed whatever the latest update was.

I attempted to access a local pdf file using Nightly in two ways:
 - Dragging the pdf onto a Nightly window
 - Entering the path in the Nightly address bar


Actual results:

Firefox opened a new window and attempted to download a pdf.part file
and repeated this ad infinitum, only stopping when I started to close windows in response. The pdf was never opened in Nightly.


Expected results:

Nightly is configured in my Preferences to open pdfs, and pdfs opened fine prior to the relaunch. The pdf should have been rendered in the browser window with pdf.js.

Comment 1

[Kohei Yoshino [:kohei]]

Please troubleshoot with Safe Mode: https://support.mozilla.org/kb/troubleshoot-firefox-issues-using-safe-mode

Comment 2

[miliu]

Problem persists in safe mode

Comment 3

[miliu]

I changed my preferences to have Firefox always ask before attempting to open/save a pdf, and discovered an intermediate cause of this problem.

Attempting to open a pdf with Firefox results in Firefox trying to open the pdf in a new window,
but the new window will then again prompt me to open/save the document. Before, I had Firefox automatically attempt to open, so it would skip this prompt and recursively open new windows.

Comment 4

[miliu]

Issue has been resolved by cycling through the Action Preferences () for PDF handling and restarting Nightly multiple times.

Comment 5

[:Paolo Amadini]

Likely a duplicate of bug 218257.