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FF 57 Disregards Application Preferences for PDF

McFly
McFly
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I prefer using my default PDF viewer to view PDF files rather than in the browser. I'd set the previous version of FF to open PDFs in the external application. When Firefox updated to 57 the setting transfered (the settings page shows that I want to use the default OS application), but PDFs now open in the browser preview. Please advise how to fix. Thank you.

OS: Linux Mint 17

PS. FF57 looks pretty good so far, but is there a way to get rid of the excessive blank space between the Home button and the address bar and between the search box and my addon icons?

I prefer using my default PDF viewer to view PDF files rather than in the browser. I'd set the previous version of FF to open PDFs in the external application. When Firefox updated to 57 the setting transfered (the settings page shows that I want to use the default OS application), but PDFs now open in the browser preview. Please advise how to fix. Thank you. OS: Linux Mint 17 PS. FF57 looks pretty good so far, but is there a way to get rid of the excessive blank space between the Home button and the address bar and between the search box and my addon icons?

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
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On the PDFs, does it help to change the setting a few times, switching among Preview, Save, and your external application?

Historically, Firefox stored "download actions" in a file named mimeTypes.rdf which contained details on your applications. Recently Firefox began using a file named handlers.json which seems to work very differently; I don't know how to diagnose it.

Regarding the toolbar, there are "flexible spacers" that cause the centering. If you call up the Customize pane, you can drag those off the bar. See: Customize Firefox controls, buttons and toolbars.