I just tried installing SeaMonkey 2 for the first time and had it import settings from a SeaMonkey 1.5 trunk build. I found that most of my settings were migrated, but my plugins were not, and I had to copy them to the new directory manually. Perhaps the plugins should be migrated, rather than having users re-install all plugins, or manually copy them over.
It would be sufficient, I think, if the installation instructions said to backup and restore the plugins directory. Backup should use the tar command *without* the -h switch. That will maintain which entries are files and which are symlinks.
Is this a valid report or is it WONTFIX?
I don't think the SeaMonkey team will invest energy in that.
Besides in 2.1 plugins are either delivered as XPIs installed in the profile or via third party installers and installed in system global locations. Confirmed =>WONTFIX