Firefox file associations do not work under Kubuntu 12.04

[Marco Giannini]

Hi. I have a problem under Firefox on Kubuntu 12.04 with file associations. If I click on download menu to open a downloaded file or open a path folder of the file i have a messagge for chose application to open with.

This is a screen of the problem

http://dl.dropbox.com/u/49764524/firefox.png

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[tom.sapien (allemeineemailsgehenhierhin)]

same problem here after upgrading to kubuntu 12.04

[licensed (licensed)]

I had same problem here and solved with this steps:

1) stop firefox
2) rm ~/.mozilla/firefox//mimeTypes.rdf
3) start firefox
4) download a file
5) open it from the downloads menu and choose the application. Browse to /usr/bin/xdg-open. then check to remember your choice

source: http://matthieu.yiptong.ca/2012/04/12/fix-file-open-and-open-containing-folder-on-kdekubuntu-12-04/

[Mechanical snail (replicator-snail)]

The cause is that the firefox-kde-support package was removed in Precise. As such, I marked as a duplicate of that bug.