Java applet inside tab loses state in non-IE browsers

[Robin Smidsrød]

In Firefox 3.6.8 on Windows 7 x64 (with 32-bit JRE) the applet will quite often (almost always) not load properly, and if you switch tabs the applet will be completely unloaded and reload, making it lose any instance state it has. On IE8 on the same machine the applet seems to operate as it should. Going into the Java Control Panel -> Advanced -> Debugging and enabling all the three debugging options should give you full life-cycle feedback of the applet in the Java Plugin console (I believe a full browser restart is required to activate it).

Zip file with minimal test case that illustrates point attached.

[Robin Smidsrød]

Test case

[Robin Smidsrød]

Related information here:

• ​http://forums.mozillazine.org/viewtopic.php?f=9&t=352669
• ​https://wiki.mozilla.org/Gecko:Moving_Plugins_To_Content
• ​https://bugzilla.mozilla.org/show_bug.cgi?id=484209
• ​https://bugzilla.mozilla.org/show_bug.cgi?id=88998

A possible workaround:

• ​https://bugzilla.mozilla.org/show_bug.cgi?id=90268#c35

An even more interesting workaround:

• ​https://bugzilla.mozilla.org/show_bug.cgi?id=90268#c47

[Scott González]

It sounds like this has been fixed in Firefox: ​https://bugzilla.mozilla.org/show_bug.cgi?id=90268#c263

Can you confirm?

[Robin Smidsrød]

The attached archive does indeed work for me on Firefox 14.0.1 32-bit on Windows 7 x64 using Java SE 7 U6, version 10.6.2.24.

The applet only initializes once.

It seems like the Mozilla team fixed the problem.

[Scott González]

Thanks. Closing as won't fix since this now only affects versions that we don't support.