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Firefox will not open PDF in Preview as it is set in Preferences
Preferences>Applications>Content Type: Portable Document Format (PDF) ... Action: Use Preview (default) OR Action: Preview in Firefox OR Action: Always Ask
Same result: Dialog box which says: "You have chosen to open (filename) ... Which is: (file type) ... From: (URL) Would you like to save this file?" Options are Save File OR Cancel. There is no way to actually open the file without saving it first. I do not want to save the file.
Preferences>Applications>Content Type: Portable Document Format (PDF) ... Action: Use Preview (default) OR Action: Preview in Firefox OR Action: Always Ask
Same result: Dialog box which says: "You have chosen to open (filename) ... Which is: (file type) ... From: (URL)
Would you like to save this file?" Options are Save File OR Cancel. There is no way to actually open the file without saving it first. I do not want to save the file.
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選擇的解決方法
Delete the mimetypes.rdf file in the profile folder with firefox closed, see below for finding the profile, then open FF again and change the options in the application menu.