1. Jave Plugin Problem

  • “HELP-Java display problem!  If you have an issue with the Java plug-in or Flash plug-in error, please click
    https://support.mozilla.org/en-US/kb/why-do-i-have-click-activate-plugins
  • When is it OK to activate instead of updating a plugin?
    Updating a plugin is always the safest thing to do but, sometimes, it may not be possible. For example, you may not be allowed to update a computer at work or school. In a situation like this, you can make a smart choice depending on your current task:

If you're using a trusted site like YouTube or a special site for your work or school, you might feel safe enough to enable a vulnerable plugin in order to view the site’s content.

  • If you don't fully trust a site that you arrived at from, for example, following a link, you probably do not want activate the plugin.
  • How to always activate a plugin for a trusted website
    If you are unable to update a plugin and you are using a trusted site, you can set that plugin to automatically run whenever using that site:
  • Click the red plugin icon in the address bar and a message window will open.
  • In the message panel, click Allow and Remember.
  • Fx24AllowJavaDropdown
    Now, whenever you visit this site, the plugin will automatically run and you won't get the "Click to activate" message.

If the Java plugin still cannot be displayed properly, you can click "Java" program from the start memu(windows), select "Configure Java", and then click "Security", and switch "Security level" to "Medium". In this case, everything supported by Java will be displayed. (Also try http://community.spiceworks.com/how_to/show/65737-java-error-missing-required-permissions-manifest-attribute-in-main-jar )