Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ค้นหาฝ่ายสนับสนุน

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

เรียนรู้เพิ่มเติม

Why does Firefox always revert to Firefox file reader?

  • 3 การตอบกลับ
  • 2 คนมีปัญหานี้
  • 18 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย tjm1938

more options

I know how to change the reader for PDF files to open with Adobe, but Firefox changes it back to the Firefox reader and I have to change it back to Adobe all the time. Why can't Firefox just KEEP my preference for Adobe????

I know how to change the reader for PDF files to open with Adobe, but Firefox changes it back to the Firefox reader and I have to change it back to Adobe all the time. Why can't Firefox just KEEP my preference for Adobe????

วิธีแก้ปัญหาที่เลือก

การตอบกลับทั้งหมด (3)

more options

วิธีแก้ปัญหาที่เลือก

more options

Not completely sure but firefox might not come with a built in pdf viewer anymore. You might also want to update to 54

more options

Firefox DOES come with a builtin Firefox pdf viewer. I don't like it or want to use it. I want to use Adobe. You are right, I didn't realize that I hadn't updated to version 54 and I did update per your suggestion. This time when I launched Firefox it did retain my preferred pdf viewer as Adobe. Thanks for your suggestions.