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How can I force Firefox to open EPS file upon Download? Settings won't "take"

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I work in a job where I must download an EPS file and have it open in Adobe Illustrator straightaway, without dialog box. I have checked the "Do this every time" box, and set it to always open Illustrator upon download of an EPS file in the Options panel. It will not "take" my instruction, and always asks me what to do with the file when it is downloaded, every time. My coworkers say this is a "known bug" -- that's a pretty heinous bug, Mozilla.

Is there an extension or about:config tweak we can use to bypass the dialog box?

I work in a job where I must download an EPS file and have it open in Adobe Illustrator straightaway, without dialog box. I have checked the "Do this every time" box, and set it to always open Illustrator upon download of an EPS file in the Options panel. It will not "take" my instruction, and always asks me what to do with the file when it is downloaded, every time. My coworkers say this is a "known bug" -- that's a pretty heinous bug, Mozilla. Is there an extension or about:config tweak we can use to bypass the dialog box?

All Replies (12)

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This is what I am using. I am terribly sorry to soak up so much of your time. It doesn't seem to be returning any requests after I hit the garbage can to clear the list, when I try to download a file. It could be that our server does it a different way.

If I am able to get our tech support department to tell me the content type, perhaps I can tell Firefox how to deal with it ... my question is, again, what next, if I find out the content type?

Thanks again.

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seattlespayne said

If I am able to get our tech support department to tell me the content type, perhaps I can tell Firefox how to deal with it ... my question is, again, what next, if I find out the content type?

If the content-type is something distinct like "application/eps" or "image/x-eps", then Firefox can be trained what to do. In fact, the download type should already show up on the Options page in the Applications box.

If the content-type is something generic like "application/octet-stream" then that won't work and you would need some "Plan B" which could be using another browser or finding an add-on which intercepts downloads and "fixes" generic content types to match the file extension.

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Well it's good to know that Firefox can be "trained." I will attempt to locate the content type, I appreciate your help. If I find it, I will come back and ask you how to "train" it to do what I ask.

I DO have it set to open any incoming EPS file to automatically open in Illustrator, set in the Options tab. It is not working. It seems to me like an EPS file should easily open automatically because Firefox should be able to detect that it is an EPS file, there shouldn't have to be all this spaghetti logic floating around.

Modified by seattlespayne

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MIME types are usually 'defined' in the MIME database key in the Windows Registry.

  • HKEY_CLASSES_ROOT\MIME\Database\Content Type\
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cor-el said

MIME types are usually 'defined' in the MIME database key in the Windows Registry.
  • HKEY_CLASSES_ROOT\MIME\Database\Content Type\

LOL thanks but that's out in the weeds for a graphic designer trying to look at EPS files! :)

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cor-el said

If you can't open the file automatically then this usually means that the server doesn't send the file with a valid content type. An automatic action only works properly is there is a action present in "Options/Preferences -> General -> Applications" and stored in handlers.json

Right, we have determined it's a good chance the server is not sending them with the valid content type, however I am having trouble finding what content type it actually is. All signs point to EPS file but clearly that's not the case. The prefs are being saved, but it's just not working, which means non-valid content type.

The pop-out window issue is stumping me, I can't find the content type because it's not registering in the main window.

Then the question is, how do you force Firefox to open it automatically upon download, if it's some odd content type?

Thanks again for your help.

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Firefox identifies download handlers by content type. To see the content type behind the EPS entry in your Applications list, you can open a settings file. Yet another journey into the obscure:

Open your current Firefox settings (AKA Firefox profile) folder using either

  • "3-bar" menu button > "?" Help > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

In the first table on the page, on the Profile Folder row, click the "Open Folder" button. This should launch a new window listing various files and folders in Windows Explorer.

Resize the window so you can see the Troubleshooting Information page in Firefox.

Scroll down to handlers.json and drag-and-drop that onto the Troubleshooting Information page.

After a few moments, Firefox should display a structured view of the data file. You can use Find (Ctrl+f) to search for EPS or Encapsulated.

To find the content-type, look to the left and read up to find it. The usual for EPS were noted before: application/eps, application/x-eps, image/eps, or image/x-eps. You might have one or more of those.

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It's greek to me, here is the page you instructed me to find, what does it mean? LOL

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Thanks, it shows the content type Firefox knows how to handle is"

application/postscript

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jscher2000 said

Thanks, it shows the content type Firefox knows how to handle is" application/postscript

Thanks, now what?

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One possibility is that the server is not using that content type, but something else instead. If we learn what that is, we might be able to make Firefox handle it, assuming it's not the generic one for "any kind of binary content".

That my main theory.

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jscher2000 said

One possibility is that the server is not using that content type, but something else instead. If we learn what that is, we might be able to make Firefox handle it, assuming it's not the generic one for "any kind of binary content". That my main theory.

Okay, thanks. I thought that last exercise was helping us determine the content type. :(

I will attempt to ask our IT department the answer. Until then I'll be saying OK to the dialog box every time I download a file. Thanks so much for your help.

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