[Technology] Firefox, libraries, and architectures

So, my laptop is unusable at present, so I'm trying to use school computers.  Trying to check my e-mail (GMail, which gets my University e-mails), I am told that the installed browser (Ice Weasel) is 'too old'.  OK, so I'll just locally install a newer Firefox.

$ firefox
XPCOMGlueLoad error for file ~/.local/opt/firefox/libxul.so:
libdbus-glib-1.so.2: cannot open shared object file: No such file or directory
Couldn't load XPCOM.

I double check, and indeed, libdbus-glib-1.so.2 is in /usr/lib/.



Running

$ LD_DEBUG=libs firefox

prints out, among other things, the search path it uses, and confirms that Firefox's website provided me with a 32-bit binary, expecting 32-bit libraries, on a system that does not have many 32-bit libraries. :D  Not even 'LD_LIBRARY_PATH=/usr/lib firefox' can save me now.



Annoyingly, Firefox's website doesn't seem to offer an easy way to choose which architecture (beyond the OS and language) you want, so I just went here:



http://releases.mozilla.org/pub/mozilla.org/firefox/releases/latest/linux-x86_64/en-US/



And voila!