Lesser Known Firefox Extensions: PermaTabs

This is an awesome, and pretty self-explanatory add-on. It turns any tab you like into a "permanent tab" that can't be accidentally closed, and is unaffected by opening and closing the browser. To enable or disable a permanent tab, simply right click it and check or uncheck the "Permanent Tab" option. Simple and easy.
It's really useful for keeping things like email, RSS reader, or an oft-visited site always available. It really shines when combined with FaviconizeTab.
The one I'm linking to is experimental, and technically called "PermaTabs Mod," but don't let that stop you. It's really stable (I've never encountered or heard of an issue) and is basically only experimental because it's recently been ported from the Firefox 2 version.

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