Linux running Firefox error

The virtual machine comes with the Firefox version is too old, so on the official web download the latest installation package, after running the prompt:

$ Firefox    for file/home/parallels/firefox-32/libmozgtk.so:  libgtkor  directory  Couldn't load XPCOM.

Note that the lack of libgtk-3.so.0 library, on-line search, said that the number of software and operating system is not consistent, but my Linux is 32-bit, Firefox is 32-bit, according to the truth can be run AH. After careful consideration should be a library that does not have GTK installed, and then see the libraries that have GTK2 installed. In a careful thought, the original version of Firefox is using the GTK3 library, and my gtk2 library is not enough. So either install GTK3 or install Firefox using the GTK2 library.

I use the following method to download the previous version of Firefox 49.

The old version is as follows:

http://download.firefox.com.cn/releases/firefox/40.0/zh-CN/Firefox-latest.tar.bz2

Change the middle 40.0 to select the corresponding version.

Linux running Firefox error