1328864 - Opening a PDF file with "Do this automatically for files..." in Firefox results in multiple empty tabs and file downloads

Status: RESOLVED DUPLICATE of bug 1633790

(Core :: DOM: Navigation, defect)

Description

[[e-mail]]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:51.0) Gecko/20100101 Firefox/51.0
Build ID: 20170103031119

Steps to reproduce:

Clicking on a PDF downloading link here 

http://www.seat.sk/konfigurovat-kupit/cenniky-katalogy-a-technicke-udaje/leon

Under "Nový SEAT Leon SC/5D/ST Kombi" offers to either Open or Download the PDF file. This happens when checking the "Do this automatically for files..." option with "Open with Firefox".


Actual results:

Firefox downloaded the file 5 times - opened 5 empty tabs to download the file in each and then opened the file in the sixth tab.


Expected results:

I've selected "Open with Firefox (default)" option and checked "Do this automatically..." so Firefox should just open the PDF file in the new tab without asking again.

Comment 1

[[e-mail]]

Attachment: scr01.jpg

screenshot of the result

Comment 2

[[e-mail]]

Copying the direct link to PDF

http://www.seat.sk/media/Kwc_Basic_DownloadTag_Component/1500-13494-list-28714-link-linkTag-child/default/285625b0/1483544952/kalkulacia-leon-mj2017-01-04-facelift.pdf

and opening in Firefox shows the same result.

Comment 3

[Loic]

Because you have associated .pdf files to firefox.exe on your OS (you can see that in the download panel of Firefox, PDF files have the Firefox icon) and the webserver doesn't offer the possibility to read online the PDF, so Firefox calls itself recursively to open the PDF.
https://support.mozilla.org/en-US/kb/firefox-repeatedly-opens-empty-tabs-or-windows

As it's a support request, I close it. Use https://support.mozilla.org/en-US/questions for help questions.

Comment 4

[Emma Humphries ☕️🎸🧞‍♀️✨ (she/they) [:emceeaich] (Pacific Time) use needinfo]

While this is user action causing this, we should have some guard rails up that prevents one from doing this.

Reopening.

Comment 6

[Emma Humphries ☕️🎸🧞‍♀️✨ (she/they) [:emceeaich] (Pacific Time) use needinfo]

This is being fixed in bug 1633790 so closing this as a dupe.