Do not use this addon!

What it does is hold your tabs hostage - it replaces tab address with a text string which is only understood by this addon.
If anything happens to this addon - consider all your tabs gone, they will not load anymore. Even if you re-activtae or re-install the addon, this won't solve the problem, the tabs will still not load!

Same thing will happen if the addon becomes incompatible with the future FF releases - you will lose all your tabs.
I am writing this looking at multiple dead tabs which I can't load anymore after de-activating and then re-activating this addon...

Often, when clicking buttons that open new pages (in new tabs), this addons intercepts the page open request and backgrounds the page right away, and refuses to activate the page. Have to copy the URL, open a tab manually, and paste the URL, to open the page. This just completely ruins the usefulness of this addon.

Clears forms when loading a new tab with submitted data and hangs when opening a new tab from link (right-click option menu). Frequently requires going back to previous tab and then back to new tab before it will load new tab. Works well on certain things, but kills my work flow when opening tabs for business applications. Wish it worked as advertised. :(