How to ignore "Content-Disposition: attachment" in Firefox

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How to ignore "Content-Disposition: attachment" in Firefox

How can I cause Firefox to ignore the Content-Disposition: attachment header? I find it absolutely annoying that I can't view an image in the browser, because it asks me to download it.

I don't want to download the file, I just want to view it in the browser. If the browser doesn't have a plugin to handle it, then it should ask to download.

E.g. I have Adobe Acrobat Reader installed as a plugin for Firefox. I click a link to a PDF, and it asks me to save it, when it should open in the browser using the plugin. This is the behaviour if the server does not send the Content-Disposition: attachment header in the response.

Firefox 3.6.6 Windows XP SP3

Well, that's the purpose of disposition type "attachment".

The default behavior (when the header is absent) should be to display in-line.

Maybe there's a configuration problem in your browser, or the Reader plugin?

Julian Reschke 2010-07-15 06:03:12

Nah, images are handled by Firefox directly; without a plugin. What I'm saying is I don't want to download it, I just want to see it.The biggest reason for this is to prevent excess windows from opening.Normally, I click a link, see the file. But in some cases (like download this image) open a new window "Your download will begin shortly" which opens a Firefox dialog (Yes, I know I can skip this) so I choose "open with", the file downloads, then the program opens. Count these up. That's 5 windows for what in all other cases is 1.

2010-07-15 21:43:09

Again: check that your reader plugin is configured properly (try another machine?). Check the HTTP Trace (is the header really present). Optimally, supply a test case that demonstrates the problem.

Julian Reschke 2010-07-19 14:43:17

The *site* is adding the header to say *it* wants you to download it. It's perfectly reasonable to want the browser to let you override this (just like it does for thousands of other actions: open in new tab, block javascript, etc etc).

Draemon 2010-07-20 12:46:49

Go to Tools > Options > Applications and change the dropdown option Always Ask associated with a certain content type to the default application to your taste.

BalusC 2010-09-08 17:37:56

But he wants it to open directly in the browser, not an external application.

Draemon 2010-09-09 09:52:15

You could write a firefox extension that removes the disposition header for PDF files. This would be a fairly simple extension.

Mike 2010-09-08 18:34:42

For PDFs there is an addon called PDF-Download which overrides any attempt to download a PDF and lets the user decide how they want it downloaded (inline, save, external, etc). You could probably modify it to work for other filetypes too.

Mr. Shiny and New 2010-09-08 18:58:21

The "Open in browser" extension is useful for formats supported natively by the browser, not sure about PDF.

Nickolay 2010-09-12 19:55:44

I already found this extension before you answered, but that's what i finally did.

LatinSuD 2010-09-14 21:05:51

ansaurus

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How to ignore "Content-Disposition: attachment" in Firefox

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