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CloseReview for Session Manager by ReneLeonhardt
Rated 5 out of 5 stars
I'm using it personally and for all installations for friends since years.
Please check if there is a regression when used with BarTab 2.1b2 and Firefox 4.0b12pre: When an unloaded tab is loaded, it navigates to the last history entry, not the one which was current when Firefox closed.
And automatic loading does not work, on activating tab content stays white, you have to manually reload it.
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