[Q] How to install Java or plugins in Firefox of ICS? - Android Q&A, Help & Troubleshooting

Dear all,
Some websites require to use Firefox and install JAVA or plugins to play movies. But when I use Chrome to open these webs and click on the guided link to download JAVA, it told me that there is no suitable version yet.
When I use Firefox to open these webs, it said there are no plugins, and didn't tell me what plugins.
But I can open these movies on webs using android 3.1 or lower.
So, is it because ICS 4.0.3 hasn't supported to open webs which require JAVA or there are other ways to open these movies?
thank you very much for your reply.

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Oracle doesn't make plug-in for Android but you may use Adobe Flash Player. But it's strange

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I've already installed Adobe flash player 11 before but it's no use.
Actually they require JAVA runtime or plugins or something like that.

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Android has no Java support. In order to use a Java plugin, the installation of Java se runtime for arm CPU would be required (it worked like a charm on my old Nokia n900 debian based) but there would be no way to use the Java vm into the dalvik vm.
The only way (if your phone is a dual core, though it'd too slow) is running Java applet into an Ubuntu chrooted environment. In that case, it would be strongly suggestable to download the latest version of Java se from oracle site, which has jit and is very fast in comparison to the version you can find on current Ubuntu img.
Then, you'll just have to unpack it and put it somewhere in Ubuntu chrooted fs and make a symbolic link in order to jar to be launched via that Java se version. Besides, check inside Firefox configuration (always the chrooted one) and manually set the plugin path, though it could use the old version.
So you'll get a fully functional Java vm in android

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wow, it's complicated. So it means that I have to install 'ubuntu installer' (the same as 'linux installer' in Play Market, is it right? ) and then install firefox with plugins to use, does it?
If do it this way, my phone will run 2 environments (Android and linux) at the same time and it'll become too slow then. I think my galaxy s2 with CPU 1.2ghz, ram 1g is not enough to do this . Should wait till Android supports JAVA then
thank you for your help, lucaoldb!

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You are welcome
It is easier than it looks. Anyway, the Ubuntu chrooted img has already Java support, though it is a slower version. You can test it and see if fits to your needs. If you want an improved performance, you can follow the way I suggested above.
---------- Post added at 02:09 PM ---------- Previous post was at 02:03 PM ----------
By the way, your hardware is ok and Java se support in android will not very likely be avalaible in next years, because Oracle sued Google people for copyright violation and the whole thing is not yet over...

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lucaoldb said:
Android has no Java support. In order to use a Java plugin, the installation of Java se runtime for arm CPU would be required (it worked like a charm on my old Nokia n900 debian based) but there would be no way to use the Java vm into the dalvik vm.
The only way (if your phone is a dual core, though it'd too slow) is running Java applet into an Ubuntu chrooted environment. In that case, it would be strongly suggestable to download the latest version of Java se from oracle site, which has jit and is very fast in comparison to the version you can find on current Ubuntu img.
Then, you'll just have to unpack it and put it somewhere in Ubuntu chrooted fs and make a symbolic link in order to jar to be launched via that Java se version. Besides, check inside Firefox configuration (always the chrooted one) and manually set the plugin path, though it could use the old version.
So you'll get a fully functional Java vm in android
Click to expand...
Click to collapse
I downloaded Java for ARM from Oracle site; these are the libs provided:
Code:
[email protected]:~/Downloads/ejre1.6.0_32/lib/arm# ls
client libhprof.so libjawt.so libnio.so
headless libinstrument.so libJdbcOdbc.so libnpt.so
jli libioser12.so libjdwp.so librmi.so
jvm.cfg libj2gss.so libjpeg.so libunpack.so
libawt.so libj2pcsc.so libjsig.so libverify.so
libcmm.so libj2pkcs11.so libjsound.so libzip.so
libdcpr.so libjaas_unix.so libmanagement.so native_threads
libdt_socket.so libjava_crw_demo.so libmlib_image.so
libfontmanager.so libjava.so libnet.so
I cannot find libjavaplugin_oji.so or libnpjp2.so to create the symbolic link for Firefox.
How can I do?
Regards
EDIT:
Solved, I downloaded headless version of JAVA SE instead of headful version:
ejre-1_6_0_32-fcs-b05-linux-arm-vfp-eabi-headful-05_apr_2012.tar.gz
ejre-1_6_0_32-fcs-b05-linux-arm-vfp-eabi-headless-05_apr_2012.tar.gz
in headful version the file libnpjp2.so is present.