Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

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.

Rohkem teavet

Cant open PDF with internal PDF Viewer in Firefox 60.4.0 ESR

  • 5 vastust
  • 1 on selline probleem
  • 15 views
  • Viimati vastas Klaus

Hi everyone,

i use the Firefox 60.4.0 ESR 64bit Version and cant use Firefox to display a PDF internal Viewer. The Setting Option just display: - ask evertime - save the File - Open with Acrobat Reader...

Cant select the option "Display pdf in Firefox".

Could help me with this?

Thanks in advance.

Regards Klaus

Hi everyone, i use the Firefox 60.4.0 ESR 64bit Version and cant use Firefox to display a PDF internal Viewer. The Setting Option just display: - ask evertime - save the File - Open with Acrobat Reader... Cant select the option "Display pdf in Firefox". Could help me with this? Thanks in advance. Regards Klaus

All Replies (5)

See Screenshot

hi, could you check in about:config that "pdfjs.disabled" is set to false?

Hi Philipp,

this option is diabled and blocked. How can i disble the block?

Thanks for your help.

Regards KLaus

if this is in a corporate environment you'd have to talk with your it department about this matter - they might intentionally disable the feature through a policy or auto-configuration... https://support.mozilla.org/en-US/products/firefox-enterprise

Hi Philipp,

Ok, i will check it if its a setting in our company.

Thanks a lot.

Regard Klaus