java.io.IOException: /usr/lib/firefox/firefox-bin: not found

[huye]

I'm in ubuntu.

cmd=getNewBrowserSession&1=*firefox&2=http://127.0.0.1

is ok.

but,

cmd=getNewBrowserSession&1=*chrome /usr/lib/firefox/firefox-bin&2=http://127.0.0.1:3000

has this error:

java.lang.RuntimeException: java.io.IOException: java.io.IOException: /usr/lib/firefox/firefox-bin: not found
at org.openqa.selenium.server.browserlaunchers.FirefoxChromeLauncher.launch(FirefoxChromeLauncher.java:144)
at org.openqa.selenium.server.browserlaunchers.FirefoxChromeLauncher.launchRemoteSession(FirefoxChromeLauncher.java:322)
at org.openqa.selenium.server.SeleniumDriverResourceHandler.getNewBrowserSession(SeleniumDriverResourceHandler.java:587)
at org.openqa.selenium.server.SeleniumDriverResourceHandler.doCommand(SeleniumDriverResourceHandler.java:396)
at org.openqa.selenium.server.SeleniumDriverResourceHandler.handleCommandRequest(SeleniumDriverResourceHandler.java:375)
at org.openqa.selenium.server.SeleniumDriverResourceHandler.handle(SeleniumDriverResourceHandler.java:123)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
at org.mortbay.http.HttpServer.service(HttpServer.java:909)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:982)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
Caused by: java.io.IOException: java.io.IOException: /usr/lib/firefox/firefox-bin: not found
at java.lang.UNIXProcess.{code:html}<init>{code}(UNIXProcess.java:148)
at java.lang.ProcessImpl.start(ProcessImpl.java:65)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
at java.lang.Runtime.exec(Runtime.java:591)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:834)
at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:435)
at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:449)
at org.openqa.selenium.server.browserlaunchers.FirefoxChromeLauncher.launch(FirefoxChromeLauncher.java:134)
... 14 more


So, i have tried run firefox-bin manually :
$ /usr/lib/firefox/firefox-bin
/usr/lib/firefox/firefox-bin: error while loading shared libraries: libmozjs.so: cannot open shared object file: No such file or directory

but :
$ firefox
is ok.

How to fix it?
Please help me !