I was a similar problem on Ubuntu 10.04. I realised that I had icedtea plugins installed. I solved it by write in a terminal "sudo apt-get remove icedtea6-plugin". I hope this helps. Thank you
thibaud, thank you, your solution worked for me. I had URO: /usr/share/java/openoffice but this seems to access the built in java for OO, instead of the Sun Java (now Oracle).
I've never had a problem with zotero auto detecting the paths, that's really interesting, until using Lucid
I am running ubuntu 10.04 64 bit. When I had this problem before I fixed it by removing all Icedtea plugins. This time this was not enough. After uninstalling all other java plugins I had to install "Sun Java 6.0 Plug-in" from the repository. I don't know how and why but zotero is working now. Hope this helps!
All Linux guys- I had similar problems. It turns out I had to quit FF to kill a failed reinstall of the Open Office addon. You may see something like when you do ps: 21598 20906 0 21:30 pts/0 00:00:00 [unopkg] <defunct>
Quit FF, reinstall OO components with the correct paths and you should be fine...
http://forums.zotero.org/discussion/11429/zotero-in-ubuntu-104-lucid-lynx/#24
http://www.zotero.org/support/word_processor_plugin_troubleshooting#component_loading_error_on_ubuntu_linux
I've never had a problem with zotero auto detecting the paths, that's really interesting, until using Lucid
21598 20906 0 21:30 pts/0 00:00:00 [unopkg] <defunct>
Quit FF, reinstall OO components with the correct paths and you should be fine...