I guess I have just figured out what's going on here. It was ubufox behind all this.
For people who were also upgrading from Hardy, you might want to disable the extension ``Ubuntu Firefox Modification'' (which comes from package ``ubufox'') and turn it back on. I also had a complete purge/reinstall for all the firefox stuff before that, just not sure whether it's relevant or not. In my case, that solved my problem. Now I can open PDF file with /usr/bin/xpdf without any problem. I had this idea somewhere else suggesting ubufox might conflict with other extensions. Packages: firefox 3.6.8+build1+nobinonly-0ubuntu0.10.04.1 firefox-branding 3.6.8+build1+nobinonly-0ubuntu0.10.04.1 ubufox 0.9~rc2-0ubuntu2.1 -- Firefox does not open pdf files, they need to be downloaded intead https://bugs.launchpad.net/bugs/588570 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs