I installed Firefox 10 into
~/firefox. I've downloaded Adobe Flash Player into
~/flashplayer. In the past, I could symlink
~/firefox/plugins. But now, when I look, there is no
plugins directory inside
firefox. So where does Firefox look for its plugins?
I had a similar problem when installing firefox 16 on OpenSuSE 11.4 x86_64. I had firefox 5 installed with the distro and decided to just download the latest version from mozilla. The browser worked, but the java plugin could not be found even when placing a symlink to 1.6_37 version of the oracle java plugin in /plugins, /usr/lib/mozilla/plugins, or /.mozilla/plugins.
After reading about problems with the 64 bit java plugin, I decided to update firefox through yast and it found two java plugins: an IceTea and just fine. Yast installed some compatibility packages to make it work. Furthermore, it turned out I had to use the IceTea plugin provided by OpenSUSE as the Oracle plugin crashed firefox.
Firefox still looks in
If you were to download the firefox source and compile a 64bit version, you would find that it would work just fine with the plugins that you have.
If you are using x86_64 Linux system,and your Firefox is 64bit , then try to find it at usr/lib64/mozilla/plugins .if not ,then try usr/lib/mozilla/plugins