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Can't get PDFs to open with built-in viewer, even after completely removing/re-installing Firefox.

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  • 2 have this problem
  • Last reply by guigs

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I followed all three suggestions in the support article I found. The "last resort" option was to completely remove and reinstall Firefox. I deleted all traces of the application, then ran the installer. I got the Firefox "first-run" page. All good. I checked the preferences, and under "Applications" --> PDF, the selected option is "Preview in Firefox". However, the first time that I click on a PDF, I still get the same old "Save/Open" dialog, wanting me to download the file or open with Adobe Reader. I would really prefer to just have PDF files open directly within the browser! Why will the built-in viewer still not handle PDF files, even after completely re-installing Firefox?

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HI jbvidex, The option to stop the dialogue is in the Applications menu in the Firefox Settings. Click on the three bar menu > Preferences > Applications > search for pdf and change "Always ask" to pdf.js