There are two methods to upgrade Java Plugin in Firefox Portable. First is the recommended one — download JPortable and put it in the same PortableApps dir where your Firefox resides, that is you should get following structure:
- PortableApps/CommonFiles/Java — here you have JPortable
- PortableApps/FirefoxPortable — here you have Firefox
The torrent client Vuze/Azureus did at least ask for the location of the Java files on install and worked using the portable Java. The good thing is PortableApps.com have made this version of Java compatible with their portable applications that require or use Java such as LibreOffice or Firefox. Just make sure to have CommonFiles in the same.
Install Java Plugin Ie 11
- Install Java Plugin Firefox Portable Old Versions. Firefox 52 will be the first release version of the Mozilla Firefox web browser that will ship without support for NPAPI plugins. The only exception to the rule is. Many of the most common issues that arise when using Mozilla Firefox, Portable Edition are addressed here.
- The NoScript Firefox extension provides extra protection for Firefox, Flock, Seamonkey and other mozilla-based browsers: this free, open source add-on allows JavaScript, Java and Flash and other plugins to be executed only by trusted web sites of you.
There is another way to accomplish the same task. It is useful for instance if you have dozen of portable Firefoxes installed. Suppose you’re a web developer and you want to test your website or firefox extension against multiple versions of Firefox. In this case you can go here download and install jxpiinstall.exe. Then you automatically get the latest Java plugin in all Firefoxes you have installed.
For an old KVM switch I need to run a browser with Java 1.6. But for all other cases I want to use the latest Java browser plugin which is 1.7.
On Linux I can create two profiles and put in each a symbolic link to the Java plugins. By this I can easily create two profiles: one for Java 1.6 and on for Java 1.7.
How to achieve the same on Windows?
It seems to me that the Java version which should be run in the browser is taken form a registry key. This makes it impossible to have two browsers with two different Java plugins on the same machine. How to work around this limitation/design error?
There is already a similar question about IE and Java 1.5/1.6 but it has also no answer.
2 Answers
Use a portable Firefox together with a portable version of Java 1.6 as second browser.
This way, you can still use your primary installed Firefox together with your installed Java 1.7
You need 3 things:
Add Java Plugin To Firefox
- Firefox Portable: The launcher
FirefoxPortable.exeautomatically detects portable Java versions - jPortable: PortableApps.com is hosting a portable version of Java on sourceforge.net.
There we find archives for older Java versions including some Java 1.6 versions » Yeah! When extracting jPortable and Firefox Portable you have to set up the correct installation paths. Otherwise Firefox cannot detect Java 1.6.
As you see, the Firefox launcher jumps one folder level up and looks for a folder called
CommonFilesand loads all plugins placed inside
proof screen
It's possible you will see both Java versions in Firefox Portable under Addons » Plugins. Just disable Java 1.7 so your second browser will only use 1.6
You may want to look into http://browserstudio.com/. It's from the application virtualization folks at Spoon.net. You can mix Firefox, IE or Chrome with a number of add-ons/plug-ins, including Java.