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Full user review
"Does what it says well."
Easy to install, low overhead, easy to use, now works with Mac OS X Lion.
Can;t keep up with Firefox revisions
Other than the fact that every time a new version of Firefox comes, the software plug in is disabled, it's a good product.
Can;t really fault them for that one, thought as Firefox has an insane upgrade cycle. Other components still work behind the scenes.