Today I spent way too much time trying to figure out how to enable Java on a browser I hardly ever use. Turns out Camino in it's latest incantation does not support Java out of the box.
Fortunately it is easy to fix:
Installing the Java Embedding Plugin
1. Download the latest version of the Java Embedding Plugin (0.9.7.5 as of November 30, 2011)
2. A ZIP archive named JavaEmbeddingPlugin0.9.7.5.zip will be present in your downloads folder (often the Desktop on Mac OS X 10.4, or the Downloads folder in your Home folder on Mac OS X 10.5 and above); double-click on this archive to expand it.
3. Expanding the archive will produce a folder named JavaEmbeddingPlugin0.9.7.5; open this folder and the Binaries folder that is inside.
4. Open your Camino profile folder (~/Library/Application Support/Camino, where ~ is your home folder)
5. Drag the contents of the Binaries folder from step 3 into the Internet Plug-Ins folder that is present in your Camino profile.
6. You may now move the JavaEmbeddingPlugin0.9.7.5.zip file and the JavaEmbeddingPlugin0.9.7.5 folder to the Trash.
7. Quit Camino.
8. Relaunch Camino and check the “Enable Java” checkbox in the Web Features pane of Camino’s preferences.