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CloseReview for Window and Tab Limiter by psylem
Rated 4 out of 5 stars
I wanted to create a dumb single window browser for my 4 year old so he doesn't end up with 50 windows, this does the trick. However, have a look at this one for seamlessly killing tabs... http://piro.sakura.ne.jp/xul/_tabkiller.html.en
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