When i did my last update of Firefox from 3.6 to the version before 5.0 Frame 2.0 did not work. Have you solved this problem in the new version?
When i upgraded Firefox from version 3.6 to the next version I got a message about Frames that did not work. I work as a warehouse manager and we use an application called LogTrade when we ship goods. LogTrade was not working with the version after 3.6, I think it was 4.0? I had to reinstall 3.6 to get it working. Since LogTrade is essential for my work I don't know if I dare to upgrade to version 5.0.
Opaite Mbohovái (1)
You can try this extension to override compatibility issues,