Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

when opening a pdf outside firefox, the browser leaves behind a blank "New Tab"

kslaton
kslaton
more options

When opening a pdf outside firefox, the browser leaves behind a blank "New Tab". I have completely uninstalled and reinstalled firefox and did not import any settings from internet explorer. I have changed the one setting: options/applications/"Portable Document Format (PDF)" set to "Use Adobe Acrobat (default). Now when i navigate to a website that downloads a pdf, the pdf opens in a new Adobe Acrobat window outside of Firefox however, a blank "New Tab" is left behind inside the Firefox browser. I didn't notice this behavior until 48.0.2. Internet Explorer does not exhibit this behavior. You notice the new blank tab briefly appear and then goes away. Is there a setting I'm missing?

When opening a pdf outside firefox, the browser leaves behind a blank "New Tab". I have completely uninstalled and reinstalled firefox and did not import any settings from internet explorer. I have changed the one setting: options/applications/"Portable Document Format (PDF)" set to "Use Adobe Acrobat (default). Now when i navigate to a website that downloads a pdf, the pdf opens in a new Adobe Acrobat window outside of Firefox however, a blank "New Tab" is left behind inside the Firefox browser. I didn't notice this behavior until 48.0.2. Internet Explorer does not exhibit this behavior. You notice the new blank tab briefly appear and then goes away. Is there a setting I'm missing?

All Replies (6)

kslaton
kslaton Question owner
more options

is anyone looking into this?

kslaton
kslaton Question owner
more options

apparently Mozilla doesn't see the value in replying to their support site. Very disappointed.

Oxylatium
Oxylatium
more options

It's probably due to bug https://bugzilla.mozilla.org/show_bug.cgi?id=1301056

Can you type about:support in the location bar and paste here the line called "Multiprocess Windows".

kslaton
kslaton Question owner
more options

Multiprocess Windows is set to: 1/1 (Enabled by default)

kslaton
kslaton Question owner
more options

That bug does appear to be the one. is there any fix yet for it? Version: 49.0.2 Build ID: 20161019084923

the-edmeister
the-edmeister
  • Moderator
more options

Follow that Bug report to see when progress is made towards fixing it.

Doesn't appear to be a high priority since is is labeled as "polish".