Why can't I open pdfs in Firefox any more? I'm using a Mac with OS10.5

When I open a pdf, I just get a blank window

Hey Musedoc,
Have you looked at the article [[Opening PDF files within Firefox]]. There is some troubleshooting content in there as well. You might want to look at the section on [https://support.mozilla.com/en-US/kb/Opening%20PDF%20files%20within%20Firefox?s=opening+PDF&r=0&as=s#w_re-initialize-the-plugins-database reinitializing the plugins database].
Hopefully this helps!

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missyzz,
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I think my question might be simple to answer, so please if you read this give it a try...
I just bought a new laptop with windows 7 on it. Adobe Reader 9 was allready installed. I wanted to open simple pdf files, but I got the message "Adobe Reader ?" in an empty field that pops up.
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[private data removed]

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Why can I not open PDF files using adobe reader in firefox?

When I try to read a PDF file with adobe reader the file looks like it starts to load, I see in the tool bar the page count but the file never opens.

You can change the action for Portable Document Format (PDF) from Preview in Firefox to use another application like the Adobe Reader or set to Always Ask in "Firefox > Options/Preferences > Applications".
You can set the pdfjs.disabled pref to true on the <b>about:config</b> page to disable the build-in PDF viewer.
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*https://support.mozilla.org/kb/view-pdf-files-firefox-without-downloading-them
Note that your System Details List shows that you have a user.js file in the profile folder to initialize some prefs on each start of Firefox.
*http://kb.mozillazine.org/Preferences_not_saved
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Why can't I open pdf files in firefox anymore?

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If I've misunderstood what happened, could you give a link to the problem download?
''Removed stray text from copy/paste error.''

Why can't I open PDF files in Firefox?

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The Adobe Reader plugin may not be working properly on Mac.
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Disable the Adobe Reader plugin in Firefox (Tools > Add-ons > Plugins) and use the external Adobe Reader application or Preview application instead.
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Thank you

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*http://kb.mozillazine.org/File_types_and_download_actions
*https://support.mozilla.org/kb/view-pdf-files-firefox-without-downloading-them

I can no longer open pdfs in Firefox. I don't get an error message. Nothing happens when I click on the link. Same problem with downloads.

Never had a problem like this before, I was always able to open a pdf or download a file from any site. I used Firefox exclusively to download my credit card statements, bills, etc. but I can no longer do this.

Hi lornetz,
Have you looked at the [[Opening PDF files within Firefox]] Knowledge Base article? There is some good troubleshooting information in there. They also list 2 different PDF plugins. I'd try both just to be safe.
Hopefully this helps!

Why can't I open pdfs in Firefox any more? I'm using a Mac with OS10.5

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