Mozilla FireFox

I have been trying to get the plyugins for Mozilla Firefox to work for the AMD64 version. I have tried searching the net and so far only hints that the 32 bit version will work. I tried to get the standard plugins, macromedia and realaudio to work but neither seems to work. Does that mean I have to install the 32 bit version for it to work? -- Joseph Loo jloo@acm.org