1428266 - If I open a pdf link in firefox, triggers infinite loop of file opening

Status: RESOLVED DUPLICATE of bug 167320

(Firefox :: File Handling, defect)

Description

[rockleelotusman]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
Build ID: 20180104220114

Steps to reproduce:

My issue seems similar to what is described in old issue 628909. 

I set Sumatra PDF as default to open PDF's. 

I'm on Firefox 59 Nightly. Not sure if that is considered Trunk or not. 


Actual results:

Since setting my default, Firefox goes berserk when I click a pdf link. Keeps opening blank tabs infinitely. Only solution is to hold down control W (close tabs faster than they open) until I have close the window. Other firefox windows not affected. 


Expected results:

No infinite loop. Just PDF open.

Comment 1

[Andre Klapper]

Exact steps to reproduce welcome, including a testcase URL. What is "Sumatra PDF"? Where to get that? Which version?

Comment 2

[rockleelotusman]

Happy to oblige to the best of my ability.

What is Sumatra: Open Source PDF viewer. One of the better ones available on Windows. https://www.sumatrapdfreader.org/free-pdf-reader.html 

Version of Sumatra: V 3.1.2 64 BIT.

Exact Workflow:
1. Set firefox's default for PDF's to anything but the built in preview. I.e. I tested setting this to "Always Ask" which was also affected.
2. Open a pdf link. I've checked with multiple sites, but this site is an example I've used http://pages.cs.wisc.edu/~remzi/OSTEP/#book-chapters . 
3. Firefox will proceed to start opening these infinitely until you control W away or otherwise manage to end the process (rather difficult because on Windows opening the file steals focus). 

Chrome/Edge are not affected and this does not occur if I set Firefox to Preview the file in Firefox.

One Significant Caveat: I'm on a Windows 10 Insider Build. Build 17063.rs_prerelease.171213-1610. I'm inclined to suspect Firefox though (since other browsers aren't impacted) but could be any underlying Windows changes causing issues.

Let me know of anything else that would be of use.

Comment 3

[YF (Yang)]

Work for me in Nightly 59.0a1 (2018-01-06) (64 bit) and Sumatra: V 3.1.2 64 BIT on Win10 1709, these is no tab opens after click pdf links on http://pages.cs.wisc.edu/~remzi/OSTEP/#book-chapters.

Comment 4

[Gingerbread Man]

(In reply to rockleelotusman from comment #2)
> Let me know of anything else that would be of use.

Can you attach handlers.json from your profile folder[1]?
Can you reproduce the issue if you move handlers.json to the desktop while Firefox is closed, then again choose to always use Sumatra PDF using whichever method?

[1] https://support.mozilla.org/kb/profiles-where-firefox-stores-user-data

Comment 5

[rockleelotusman]

Been traveling a bunch so only just getting back to this. This reddit thread someone else made shows my exact issue

https://www.reddit.com/r/firefox/comments/7qcdq9/this_happens_when_i_try_to_open_a_pdf_file_in/?ref=share&ref_source=link

I don't  understand the instruction about moving the handler file...

Comment 6

[Gingerbread Man]

(In reply to rockleelotusman from comment #5)
> I don't  understand the instruction about moving the handler file...

1. Into the location bar, enter about:support
2. Click the Open Folder button. This opens a file manager window with your profile folder.
3. Click the Firefox menu button and choose Exit.
4. In the file manager window that opened earlier, right-click the handlers.json file and choose Cut. Then right-click the desktop and choose Paste.
5. Start Firefox again. In about:preferences, set PDFs to open in Sumatra PDF.
6. Try clicking one of the PDF links you used earlier at comment 2.
7. On this page, click the "Attach file" link and attach the old handlers.json file that you moved to the desktop. In the comment box for the file, also mention if you were able to reproduce the problem after step 6.

Comment 7

[annettekusma]

Hi there, I have that issue as well with ff opening tons of empty tabs. I've attached my handlers-file. For me it is like this:

I have Win10, plain home edition. 

When I click a pdf-link in firefox, it used to open within firefox, correctly. One day, I don't know what might have changed, it opened a cascade of empty tabs. I had a hard time getting past the "Close all tabs?"-dialog box, and when I finally managed to close that window with all its tabs, firefox gladly continued opening empty tabs in the next happened-to-be-open firefox-window. 

I disabled that dialog-box, but since all windows are affected, all my open tabs are lost whenever I happen to click a pdf-link. 

I thought one of my add ons was updated and introduced some kind of bug, I disabled one add-on called Tree style tabs (I think) and for exactly one try firefox opened a pdf correctly. I thought the problem was gone, only to find it coming back next time I tried clicking a pdf-link. 

I then set the os standard app for opening pdf:s to Microsoft Edge. Rightclicking and saving the file works now fine, when I click on it in the downloaded files list within firefox, Edge openes the file, no problems.

But just clicking on the pdf-link still gives the tons of tabs. I have restarted the computer to ensure that the Edge-setting really is applied from all angles.

I finally removed the handlers.json-file. When clicking a pdf-link I then got the dialog-box, chose open in TWINUI, worked fine. Tried again, chose open in firefox and I got another tab, asking me whether to open in Firefox or do something else, clicked ok, got another tab and so on. So, without the handlers-file, I can make Ff open in another app instead of having to save and open the file. Still I'd rather have it like before, opening in ff directly.

Comment 8

[annettekusma]

Attachment: handlers.json

Comment 9

[Gingerbread Man]

(In reply to annettekusma from comment #7)
> asking me whether to open in Firefox or do something else, clicked ok, got another tab and so on.

If you get a "What should Firefox do with this file?" dialog and you choose to open with Firefox, that will create an infinite loop. Your handlers.json shows that you've selected that at some point. That dialog is for external applications only, and you're not supposed to be able to pick Firefox there [1]. To do that safely, use the Open in Browser extension [2].

The only way to view PDFs in Firefox is to set the action to "Preview in Firefox" in about:preferences. However, servers can still trigger the "What should Firefox do with this file?" dialog, usually by sending the Content-Disposition: attachment header. One way to get around that is the Bypass Forced Download extension [3]. Less commonly, they can also fail to correctly identify the file type by sending Content-Type: application/octet-stream. Extensions like Header Editor can override that [4].

This report was only noteworthy because the loop was occurring with an external application as the handler for PDFs.


[1] Bug 218257
[2] https://addons.mozilla.org/firefox/addon/open-in-browser/
[3] https://addons.mozilla.org/firefox/addon/bypass-forced-download/
[4] https://addons.mozilla.org/firefox/addon/header-editor/

Comment 10

[annettekusma]

(In reply to Gingerbread Man from comment #9)
> [1]. To do that safely, use the Open in Browser extension [2].
> 
> The only way to view PDFs in Firefox is to set the action to "Preview in
> Firefox" in about:preferences. However, servers can still trigger the "What

Thank you for a very structured and quick reply. I will try these things out in a couple of days.

I get the loop-logic. I grasp the following from your explanation: I probably had the 'Preview in ff"-setting, but some server triggered the "what should..."-dialog and I happened to choose ff there - and make it the default action - because I didn't suspect that to be anyhow wrong since ff always correctly opened (well, "previewed") pdf's. 

So, I'll try to avoid that in the future. Thanks for you help!

Comment 11

[wil.koenen]

I have the same problem. 

Used to view PDFs in external application (Acrobat Reader), but changed it to 'open in Firefox'. Now when I open a PDF, FF keeps creating tabs infinitely.

Comment 12

[jfarellano]

Same problem this is my browser info if its need for solving this issue, the issue happens when opening any pdf on the browser.

Configuración básica de la aplicación

Nombre: Firefox
Versión: 64.0.2
ID de compilación: 20190108160530
Canal de actualización: release
Agente de usuario: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0
OS: Windows_NT 10.0
Ventanas multiproceso: 1/1 (Habilitado por omisión)
Procesos de contenido web: 3/4
Políticas empresariales: Inactivo
Clave de Google: Encontrado
Clave del servicio de ubicación de Mozilla: Encontrado
Modo seguro: false

Informes de fallos de los últimos 3 días

Todos los informes de fallo Características de Firefox

Nombre: Firefox Monitor
Versión: 2.8
ID: [e-mail]

Nombre: Firefox Screenshots
Versión: 35.0.0
ID: [e-mail]

Nombre: Form Autofill
Versión: 1.0
ID: [e-mail]

Nombre: Web Compat
Versión: 3.0.0
ID: [e-mail]

Nombre: WebCompat Reporter
Versión: 1.1.0
ID: [e-mail]

Extensiones

Nombre: AdGuard AdBlocker
Versión: 2.10.17
Activada: true
ID: [e-mail]

Nombre: Firefox Multi-Account Containers
Versión: 6.1.0
Activada: true
ID: @testpilot-containers

Nombre: OneTab
Versión: 1.25
Activada: true
ID: [e-mail]

Nombre: Pushbullet
Versión: 335
Activada: true
ID: jid1-BYcQOfYfmBMd9A@jetpack

Nombre: Shift + Scroll (Horizontal Scrolling)
Versión: 0.1.1
Activada: true
ID: @shift-scroll

Software de seguridad

Tipo: Windows Defender Antivirus

Tipo: Windows Defender Antivirus

Tipo: Windows Firewall

Gráficos

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Direct2D: true
Dibujado fuera del hilo principal de ejecución activado: true
Contador de workers de dibujado ajenos al hilo principal de ejecución: 3
DirectWrite: true (10.0.17763.168)
GPU #1
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RAM: 2048
Diagnósticos
AzureCanvasAccelerated: 0
AzureCanvasBackend: direct2d 1.1
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Registro de decisiones
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
WEBRENDER_QUALIFIED:
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Medios

Sistema de audio: wasapi
Canales máximos: 2
Tasa de muestreo preferida: 48000
Dispositivos de salida
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Headset (KZ Earphone Hands-Free):
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Headphones (High Definition Audio Device):
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Dispositivos de entrada
Nombre: Grupo
Microphone (High Definition Audio Device):
Microphone (High Definition Audio Device):
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Internal AUX Jack (High Definition Audio Device):

Preferencias importantes modificadas

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print.printer_Microsoft_Print_to_PDF.print_duplex: 0
print.printer_Microsoft_Print_to_PDF.print_edge_bottom: 0
print.printer_Microsoft_Print_to_PDF.print_edge_left: 0
print.printer_Microsoft_Print_to_PDF.print_edge_right: 0
print.printer_Microsoft_Print_to_PDF.print_edge_top: 0
print.printer_Microsoft_Print_to_PDF.print_evenpages: true
print.printer_Microsoft_Print_to_PDF.print_footercenter:
print.printer_Microsoft_Print_to_PDF.print_footerleft: &PT
print.printer_Microsoft_Print_to_PDF.print_footerright: &D
print.printer_Microsoft_Print_to_PDF.print_headercenter:
print.printer_Microsoft_Print_to_PDF.print_headerleft: &T
print.printer_Microsoft_Print_to_PDF.print_headerright: &U
print.printer_Microsoft_Print_to_PDF.print_in_color: true
print.printer_Microsoft_Print_to_PDF.print_margin_bottom: 0.5
print.printer_Microsoft_Print_to_PDF.print_margin_left: 0.5
print.printer_Microsoft_Print_to_PDF.print_margin_right: 0.5
print.printer_Microsoft_Print_to_PDF.print_margin_top: 0.5
print.printer_Microsoft_Print_to_PDF.print_oddpages: true
print.printer_Microsoft_Print_to_PDF.print_orientation: 0
print.printer_Microsoft_Print_to_PDF.print_page_delay: 50
print.printer_Microsoft_Print_to_PDF.print_paper_data: 1
print.printer_Microsoft_Print_to_PDF.print_paper_height: -1.00
print.printer_Microsoft_Print_to_PDF.print_paper_name:
print.printer_Microsoft_Print_to_PDF.print_paper_size_unit: 0
print.printer_Microsoft_Print_to_PDF.print_paper_width: -1.00
print.printer_Microsoft_Print_to_PDF.print_resolution: 600
print.printer_Microsoft_Print_to_PDF.print_reversed: false
print.printer_Microsoft_Print_to_PDF.print_scaling: 1.00
print.printer_Microsoft_Print_to_PDF.print_shrink_to_fit: true
print.printer_Microsoft_Print_to_PDF.print_to_file: false
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_bottom: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_left: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_right: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_top: 0
privacy.sanitize.pending: [{"id":"newtab-container","itemsToClear":[],"options":{}}]
privacy.userContext.enabled: true
privacy.userContext.extension: @testpilot-containers
privacy.userContext.longPressBehavior: 2
privacy.userContext.ui.enabled: true
security.sandbox.content.tempDirSuffix: {451ce1e0-5670-47ae-9919-98569ca4b652}
security.sandbox.plugin.tempDirSuffix: {ec49d727-c79c-4ac9-a5d0-167c503a738b}
services.sync.declinedEngines:
services.sync.engine.prefs.modified: false
services.sync.lastPing: 1548675954
services.sync.lastSync: Mon Jan 28 2019 10:51:41 GMT-0500 (hora estándar de Colombia)
signon.importedFromSqlite: true
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1546577490
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Preferencias importantes bloqueadas

Base de datos de sitios

JavaScript

Recogida de basura incremental: true

Accesibilidad

Activado: false
Impedir accesibilidad: 0
Manejador accesible usado: true
Instanciador de accesibilidad:

Versiones de bibliotecas

NSPR
Versión mínima esperada: 4.20
Versión en uso: 4.20

NSS
Versión mínima esperada: 3.40.1
Versión en uso: 3.40.1

NSSSMIME
Versión mínima esperada: 3.40.1
Versión en uso: 3.40.1

NSSSSL
Versión mínima esperada: 3.40.1
Versión en uso: 3.40.1

NSSUTIL
Versión mínima esperada: 3.40.1
Versión en uso: 3.40.1

Entorno de pruebas

Nivel de aislamiento del proceso de contenido: 5
Nivel efectivo de aislamiento (sandboxing) para los procesos de contenido: 5

Internacionalización y localización

Configuración de la aplicación
Idiomas solicitados: ["es-ES"]
Idiomas disponibles: ["es-ES","en-US"]
Idiomas de la aplicación: ["es-ES","en-US"]
Preferencias regionales: ["es-ES","en-US"]
Idioma preterminado: "es-ES"
Sistema operativo
Idiomas del sistema: ["en-US"]
Preferencias regionales: ["en-US"]

Comment 13

[lukaszkups]

I have also the same issue: Windows 10 Home edition, firefox 73.0.1 64-bit.

Comment 14

[thebost]

The problem persists. I use ubuntu 20.04. Please reopen the bug. Thanks

Comment 15

[howardchrist420]

I'm having the same problem right now. It wasn't happening roughly 1-2 days ago though. Up until now PDF's were opening up fine.

https://i.imgur.com/YBHZg43.png

Windows 10, latest version of Firefox.

Comment 16

[Gingerbread Man]

Please stop posting comments here. There's been nothing to suggest that this isn't covered by existing bug reports. The reporter made it seem like the issue was occurring under new circumstances, but here's been no follow-up, so this should stay closed as Incomplete.

To recap:

• Read comment 6 for step-by-step directions to delete handlers.json from your profile folder and fix the issue.
• Read comment 9 to prevent sites from triggering this problem in the future. N.B.: the "Preview in Firefox" setting has been renamed to "Open in Firefox", which makes things a bit more confusing.
• Bug 218257 is about not allowing Firefox as an option in the "What should Firefox do with this file?" dialog, which is one way to create this loop.
• Bug 215554 is about the loop being created when you tell Firefox to use your default application for a file, and in your operating system you have Firefox set as the default application for that file. If you currently have Firefox set to handle PDFs in your operating system, you need to undo that.