Ubuntu & Debian FIX java plugin for Firefox and Chrome

How to Fix java plugin in Ubuntu for Firefox/Chrome

The error:

Your browser Mozilla Firefox or Google Chrome refuses to execute a java applet because of the security risks related to an old version of java, most likely the jdk1.7.0_40 which has been disabled by Mozilla Firefox plugin mantainers on October the 16th. So you probably want to install jdk1.7.0_45.  Anyway, this said, this procedure will most likely work with following versions of Java, Firefox, Chrome, Ubuntu 🙂 And of course. if you need to install Java for your browsers or operating system and you haven’t yet installed once, just skip the parts with the “rm” command as the rest is the same.

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Web developers should turn off Firefox DNS Caching

Firefox Browser
Firefox Browser

In some cases, when you normally use /etc/hosts to check if a new created website is working as expected, it can be useful to disable the browser dns records caching (yes, on the client side), especially when you are about to move a site and you cannot afford to stay offline.
Thus you will be able to check the fresh uploaded website against a new IP address.
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Client side Html Injection with firebug

As described in another article, you can use Client side html injection techniques basically for two reasons:

  • cheat on your friends
  • send variables

In this example we will send some vars to a php page predisposed in order to show all POST vars, then we will apply this technique to the ebay homepage to apply a filter to the search form.
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