Thanks for your answer. I am new in linux so there are still many things I don't know. Also, I forgot to report that my machine is an amd64.
I've got installed the most recent version of firefox, however, the bug also appeared with the previously released version of firefox. This are the firefox installed plugins: firefox-dbg firefox-dev firefox-dom-inspector firefox-gnome-support firefox-greasemonkey firefox-launchpad-plugin firefox-libthai firefox-sage firefox-themes-ubuntu firefox-webdeveloper j2re1.4-mozilla-plugin mozilla-firefox-gnome-support mozilla-plugin-gnash totem-mozilla And these are the JAVA plugins: bsh bsh-gcj gij gij-4.1 j2re1.4 java-common java-gcj-compat libcairo-java libcairo-java-gcj libgcj7-0 libgcj7-jar libgcj-common libglade-java libglade-java-gcj libglib-java libglib-java-gcj libgnome-java libgnome-java-gcj libgnome-jni libgnome-speech3 libgtk-java libgtk-java-gcj libgtk-jni libgtksourceview-common libhsqldb-java libhsqldb-java-gcj libjaxp1.3-java libjaxp1.3-java-gcj libjline-java libmozjs0d libservlet2.3-java libxalan2-java libxalan2-java-gcj libxerces2-java libxerces2-java-gcj libxt-java libxt-java-gcj Those are all I think. I looked into the crash folder but I didn't find any crash report from firefox, maybe because it doesn't really crash (it doesn't appear the crash report), it just takes me to the start session menu. All the aplications that had crashed recently have reports in this folder. As I told you, just by opening firefox it suddenly happens, soon or later. This is driving me mad :( PD: I looked the reference no. 1 you told me. I installed the libraries and tried to obtain a backtrace, however, like there is no crash report, it was completely unuseful.. Thanks! -- firefox crashed https://bugs.launchpad.net/bugs/121474 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs