There are quite a few handy Safari plugins out there. Most of them try to help make up for what Safari lacks, and normally I'd be all for trying to get the most out of your software.
Not in this case.
I've tried a few Safari plugins over the years and most of them, if not all of them, have ended up making Safari not perform properly in various situations.
I've had plugins not load sites because of an installed plugin. I've had the user-agent for the browser inexplicably change to something else. I'm also hearing of other's having upload problems when they have a plugin installed.
I think you will find that almost every plugin for Safari will somehow "break" your install. Perhaps not in anyway that you care about, or that you may even notice - but overall Safari plugins really do not perform well and are unstable.
As such - I can not recommend installing any Safari plugins. I know some of you will disagree, and that is ok with me, we can all agree to disagree on this particular issue.
[tags]safari, plugin, plugin, apple, macintosh, browser[/tags]