649934 - inline pdf documents are downloaded instead of shown inline (iframe)

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[Paul Williams]

User-Agent:       Mozilla/5.0 (Windows NT 6.1; rv:2.0) Gecko/20100101 Firefox/4.0
Build Identifier: Mozilla/5.0 (Windows NT 6.1; rv:2.0) Gecko/20100101 Firefox/4.0

on IE, or FF3x pdf would show inline with content. Now, download dialogs are shown.  I'm using Acrobat Pro 9.

Reproducible: Always

Steps to Reproduce:
1. navigate to test page
2. note that you get download dialogs, not inline PDF.
Actual Results:  
download dialog for the PDF files

Expected Results:  
pdf files shown inline using acrobat reader plugin

Comment 1

[AndreiD[QA]]

Works for Me on:
Mozilla/5.0 (Windows NT 6.1; rv:5.0a2) Gecko/20110413 Firefox/5.0a2

Can you reproduce the issue on a clean profile?
http://support.mozilla.com/en-US/kb/Profiles

Also, please check your default application for opening pdf files (Tools->Options->"Applications" tab)
Also, considering reinstalling or upgrading the PDF plugin.

Remaining Unconfirmed

Comment 2

[Paul Williams]

Mozilla/5.0 (Windows NT 6.1; rv:2.0) Gecko/20100101 Firefox/4.0

The profile is about as clean as it can get.  I had the problem on a very crufty XP install -- just reinstalled to W7 and observe the very same issue.

I can try reinstalling Acro Pro 9, but upgrades to Acro Pro X are out of the budget.

Comment 3

[Paul Williams]

Reinstalling Acro Pro 9 did not resolve the issue.  Acro 9 fails to show up on the list in about:plugins as well.

I don't know what's going on, but I have a couple of guesses:

1) Acrobat 9 installer doesn't know about the new plugins structure (couldn't find the plugins directory myself)

2) FF changed the way it queries for plugins

3) FF's newish plugin container confuses Acrobat

Anyone have a better guess?

Comment 4

[Paul Williams]

Probably option (1) above.

I dug around in the registry and found where flash player had set itself up:

HKEY_LOCAL_MACHINE\SOFTWARE\MozillaPlugins\@adobe.com/FlashPlayer

There was no Acrobat Reader node, so I copied the same structure, and most of the keys from Flash to produce an Acrobat 9 node.  I strongly suspect that only the "Path" key is important, but I did the others anyway.

[HKEY_LOCAL_MACHINE\SOFTWARE\MozillaPlugins\@adobe.com/Acrobat]
"Description"="Acrobat Pro 9"
"Path"="c:\\Program Files\\Adobe\\Acrobat 9.0\\Acrobat\\Browser\\nppdf32.dll"
"ProductName"="Adobe PDF Plug-In for Firefox and Netscape"
"Vendor"="Adobe Systems Incorporated"
"Version"="9.0.0.332"

Upon restarting, the plugin appears in the about:plugins page.  Unfortunately, when I attempt to launch an inline PDF, I get a dialog that tells me that I have to launch acrobat to accept the EULA.  I did launch Acrobat, but there was no EULA confirmation -- kinda stuck now.

Comment 5

[AndreiD[QA]]

Since it worked for me on several installs and uninstalls of both Firefox (different builds from 3.6 to 4.0) and Adobe Reader (versions from 8 to 10), I can't think of any solution in this case except for performing a registry clean-up (for any invalid entries related to FFx and/or Adobe) and also a clean install of FFx and Adobe. I hope this clears the issue. 
Remaining Unconfirmed.

Comment 6

[Vlad [QA]]

Reporter, do you have anything new to add about this issue?
Please follow the steps in comment5.

Comment 7

[Paul Williams]

Update to acro as part of a typical Adobe upgrade seemed to resolve the issue.  I'm guessing it probably has to do with my oldish Acro 9 installer in conflict with W7.  Closing, as it is unlikely to be a wide scale issue.