Firefox not opening pdf

Especially because this just happened without me ever giving permission for this. When i try to open them by simple double click, firefox opens a new window that is empty and asks me if i want to save the pdf i already have saved before.

If i click save nothing happens and my pdf is still not open. I just want to delete the Firefox HTML document type from my computer so that all files revert back to pdf. Anyway I can do this easily? Search Support Search. Learn More. Chosen solution Sometimes the file that stores your Application preferences becomes corrupted and needs to be regenerated. Start Firefox back up again. PDF should be set to "Preview in Firefox" by default.

Daniel Fath Daniel Fath 1 1 silver badge 10 10 bronze badges. Is there some specific reason you need to use PDF. Other than preference? What is pdfjs. Add a comment. Active Oldest Votes. Improve this answer. I say Reinstate Monica 24k 18 18 gold badges 90 90 silver badges bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.

The Overflow Blog. It was working fine until about noon yesterday. I have reset Firefox and removed all add-ins with the exception to the adobe one. I did. Nothing in the download folder. Turned security off. So I have figured it out. There was an issue with the firewall that was blocking just the PDF viewer in Firefox but not edge, chrome, etc To continue this discussion, please ask a new question.

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