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Unable to set action of opening image/jpeg in Firefox

  • 7 Antworten
  • 6 haben dieses Problem
  • 540 Aufrufe
  • Letzte Antwort von ifurkend

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I just want to open and view a jpg link in a firefox tab, but it instantly ask me if I want to save it or open it by other application. Fine. I go to Options - Applications to change the action of handling jpg. There are 2 kinds of jpeg, one is "JPEG Image (image/jpeg) and the other "JPEG Image (text/html). I can change the action of "text/html" to use Firefox as the default action, but for "image/jpeg", no matter how many times I tried, it just doesn't allow me to choose Firefox but other actions or applications. Precisely, I can choose Firefox in the "Select Helper Application", but after I clicked "OK", it reverted to the old action. I tried to restart Firefox and tried again, but no good at all. It frustrates me so bad.

I just want to open and view a jpg link in a firefox tab, but it instantly ask me if I want to save it or open it by other application. Fine. I go to Options - Applications to change the action of handling jpg. There are 2 kinds of jpeg, one is "JPEG Image (image/jpeg) and the other "JPEG Image (text/html). I can change the action of "text/html" to use Firefox as the default action, but for "image/jpeg", no matter how many times I tried, it just doesn't allow me to choose Firefox but other actions or applications. Precisely, I can choose Firefox in the "Select Helper Application", but after I clicked "OK", it reverted to the old action. I tried to restart Firefox and tried again, but no good at all. It frustrates me so bad.

Ausgewählte Lösung

Are you sure that these images are send with a proper MIME type for images and not with a generic MIME type that makes Firefox show the "Open with" dialog?

You can look at this extension:

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Alle Antworten (7)

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Ausgewählte Lösung

Are you sure that these images are send with a proper MIME type for images and not with a generic MIME type that makes Firefox show the "Open with" dialog?

You can look at this extension:

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I don't understand what MIME type the image possesses. I need to point out that not all JPEG images have the same problem. For example, this can be opened in Firefox normally, but this just never yields.

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I fiddled around with Applications of "JPEG Image (image/jpeg)" and now the problematic jpg file is always opened in "Windows Picture and Fax" and ignores any other action I have chosen.

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That second image that gives a open with dialog is send as Content-Type: unknown/unknown and the first working image correctly as Content-Type: image/jpeg
So this is a problem with the configuration of the server and you would need the above mentioned extension to override this.


data:text/html,<img src='http://static2.wikia.nocookie.net/__cb20131209145630/megamitensei/images/6/61/Persona_4_the_ANIMATION_-_15_-_Large_30.jpg'>
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I installed the extension, but now Firefox always opens the JPEG in question in "Windows Picture and Fax Viewer" even if I've set "Always ask" in Applications. I think I've hit the bug of Firefox handling file of unknown MIME type.

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Try to delete the mimeTypes.rdf file in the Firefox profile folder to reset all file actions.

Note that the extension will allow to open this image file in a Firefox tab as that is the purpose of this extension.

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OK, finally solved, although not the way I have hoped. Undeniably it is a bug that should be fixed instead of relying on an extension.