Change the way I view a PDF file from email.

[airi1]

When i opened a PDF file, it used to ask if I want to view or save file.  I saved a file and hit the box that does this automatically for every file I open now.  How do I undo what I did.  Now every PDF file downloads, I want to view them 1st or choose to save????

[Bernd Alheit]

This is a setting of the web browser or email software.