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Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

When trying to save a PDF file I have it set to use my PDF viewer but once I use it, it switches back to "Save PDF" for the next time? How do I stop this?

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>Options>Applications>Use PDF Viewer Plus

>Options>Applications>Use PDF Viewer Plus
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The action that you see in "Tools > Options > Applications" are tied to a specific MIME (content) type.

Firefox only support the built-in PDF Viewer for the application/pdf MIME type (likely the second entry: Portable Document Format (PDF)), so if the server sends such a file with a different MIME type then you may have created another entry like the first entry Portable Document Format.

Novain'i cor-el t@