930763 - Firefox can't open pdf documents in the file system in old profiles

Status: RESOLVED WORKSFORME

(Firefox :: PDF Viewer, defect, P3)

Description

[Palmer Eldritch]

Attachment: My mimeTypes.rdf

For a discussion see : https://support.mozilla.org/en-US/questions/961938?fpa=1

In short : old profiles can't be made to open pdf files in the internal firefox pdf viewer (via Ctrl+O for instance) - or apparently in any pdf viewer

Deleting mimetypes.rdf corrects this

There should be a one time update of the mimetypes.rdf in next FF correcting this

Detailed info is provided in this answer : https://support.mozilla.org/en-US/questions/961938#answer-446265

Comment 1

[Brendan Dahl [:bdahl]]

Can you post a copy of your working .rdf so we can diff it?

Comment 2

[Palmer Eldritch]

Don't have a working one - please read the answer I linked to above :  https://support.mozilla.org/en-US/questions/961938#answer-446265 and the whole discussion for more info.

The way to get a clean rdf is delete the old one and let FF recreate it - but the guy that posted this answer actually went through the rdf and tried to fix it manually - read his answer

Comment 3

[Palmer Eldritch]

This is still a major annoyance in latest (27.1)

Steps to reproduce :

Copy the mimeTypes.rdf attached to your profile
Hit Ctrl+O in FF
Browse to a pdf file and select it
Result: firefox launches the download dialog
Expected result: FF should display the pdf in its viewer in a new tab

The suggested workatround - Deleting mimetypes.rdf corrects this - DOES NOT work for me (it just kills the ability of FF to open the pdfs in its viewer even when from the web (as oposed to my filesystem))

Do you need more info ?

Comment 4

[Palmer Eldritch]

Attachment: My mimeTypes in 27.1

Comment 5

[Kenan]

I cannot reproduce this with Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0