Technical Notes: How to enable Java Script

Mozilla 1.X

   1. Open Mozilla.
   2. Select Preferences from the Edit menu.
   3. Click the arrow next to Advanced.
   4. Click Scripts & Plugins.
   5. Check Navigator beneath "Enable Javascript for".
   6. Click OK.
   7. Click Reload. 

Mozilla Firefox 3.xx

Bring up JavaScript Options in Firefox
Step1
Locate the top menu bar. Click Tools (for Windows) or Firefox (for a Mac).
Step2
Select Options (for Windows) or Preferences (for a Mac). A new dialog box will open on your screen.
Step3
Click the Content icon.
Enable JavaScript in Firefox
Step1
View the list of checkboxes. Make sure the 'Enable JavaScript' box is checked.
Step2
Click the 'Advanced' button. A drop-down menu will appear.
Step3
Use this menu to configure JavaScript according to your preferences. Select the checkboxes for the actions you want to allow scripts to perform. 
Click 'OK' once you are done.
Step4
Close the Options box by clicking on 'OK' for Windows systems, or closing the box for Mac users. JavaScript will now be enabled.

http://uk.youtube.com/watch?v=rHyqqfQ7mp4

Opera 5.X

   1. Open Opera.
   2. Select Quick Preferences from the File menu.
   3. Make sure Enable Javascript is checked.
   4. Click Reload. 

Opera 7.X

   1. Open Opera.
   2. Select Quick Preferences from the File menu.
   3. Make sure Enable Javascript is checked.
   4. Click Reload. 

Safari Public Beta 2 for MACOSX

   1. Open Safari.
   2. Select Preferences from the Safari menu.
   3. Click Security.
   4. Check both Enable Java and Enable JavaScript.
   5. Close the window.
   6. Click Reload. 

Internet Explorer 3.X

   1. Select Options from the View menu.
   2. Click Security.
   3. Check Enable Java Programs.
   4. Click OK.
   5. Click Reload. 

Internet Explorer 4.X

   1. Select Internet Options from the View menu.
   2. Click the Security tab.
   3. Click Custom.
   4. Click Settings.
   5. Scroll down to locate Scripting.
   6. Click Enable for Active Scripting.
   7. Click OK.
   8. Click Reload. 

Internet Explorer 5.X

   1. Open Internet Explorer.
   2. Select Internet Options from the Tools menu.
   3. In Internet Options dialog box select the Security tab.
   4. Click Custom level button at bottom. The Security Settings dialog box will pop up.
   5. Under Scripting category enable Active Scripting, Allow paste options via script and Scripting of Java applets
   6. Click OK twice to close out.
   7. Hit Refresh.

Internet Explorer 5.X for MACOSX

   1. Open Internet Explorer.
   2. Select Preferences from the Explorer menu.
   3. Click the arrow next to Web Browser.
   4. Click Web Content.
   5. Under Active Content check Enable Scripting.
   6. Click OK.
   7. Click Refresh. 

Internet Explorer 5 for MACOS9

   1. Open Internet Explorer.
   2. Select Preferences from the Edit menu.
   3. Click the arrow next to Web Browser.
   4. Click Web Content.
   5. Under Active Content check Enable Scripting.
   6. Click OK.
   7. Click Refresh. 

Internet Explorer 6.X

   1. Open Internet Explorer.
   2. Select Internet Options from the Tools menu.
   3. In Internet Options dialog box select the Security tab.
   4. Click Custom level button at bottom. The Security settings dialog box will pop up.
   5. Under Scripting category enable Active Scripting, Allow paste options via script and Scripting of Java applets
   6. Click OK twice to close out.
   7. Hit Refresh.

http://uk.youtube.com/watch?v=-WFkrHjXlYQ

Netscape 3.X

   1. Select Options from the Edit menu.
   2. Click Network Preferences.
   3. Click Languages.
   4. Check both Enable Java and Enable JavaScript.
   5. Click OK.
   6. Click Reload. 

Netscape 4.X

   1. Open Netscape.
   2. Select Preferences from the Edit menu.
   3. Click Advanced.
   4. Check both Enable Java and Enable JavaScript
   5. Click OK.
   6. Click Reload. 

Netscape 4.X for MACOS9

   1. Open Netscape.
   2. Select Preferences from the Edit menu.
   3. Click Advanced.
   4. Check both Enable Java and Enable JavaScript
   5. Click OK.
   6. Click Reload. 

Netscape 6.X for MACOSX

   1. Open Netscape.
   2. Select Preferences from the Edit menu.
   3. Click Advanced
   4. Check both Enable Java and Enable JavaScript for Navigator
   5. Click OK.
   6. Click Reload. 

Netscape 7.X

   1. Open Netscape.
   2. Select Preferences from the Edit menu.
   3. Click the arrow next to Advanced.
   4. Click Scripts & Plugins.
   5. Check Navigator beneath "Enable Javascript for".
   6. Click OK.
   7. Click Reload. 

AOL 3.0

   1. Click Preferences.
   2. Click Security.
   3. Check Enable Java Programs, if the box is blank, single click on it.
   4. Click OK .
   5. Click the browser's back button, once back, click reload. 

AOL 4.0 and 5.0

   1. Click My AOL.
   2. Click Preferences.
   3. Click WWW.
   4. Click the Security tab.
   5. Click Custom.
   6. Click Settings.
   7. Scroll down to locate Scripting.
   8. Click Enable for Active Scripting.
   9. Click OK 
  10. Click the Reload button. 

Note to AOL 4.0 & 5.0 users

When using the use AOL browser, you may get a Javascript error but, when using an external browser (i.e., Netscape or Internet Explorer) this does not occur. 
AOL uses compressed graphics by Default. This doesn't allow Java to work while browsing inside AOL. (Additionally, this makes photos you view on web pages 
look less than optimal.)

To fix this

   1. Click My AOL.
   2. Click Preferences.
   3. Click the WWW icon.
   4. Click Web Graphics tab.
   5. Uncheck the box next to Use Compressed Graphics.
   6. Click OK  
   7. Restart the computer. 

There is an older version of AOL that is a 16-bit browser. 
Only the  32-bit versions of AOL 4.0 have full Java capabilities.